diff --git a/addons/account/static/src/xml/account_journal_activity.xml b/addons/account/static/src/xml/account_journal_activity.xml
index e91b9d4ca44..9d5dbf4d97f 100644
--- a/addons/account/static/src/xml/account_journal_activity.xml
+++ b/addons/account/static/src/xml/account_journal_activity.xml
@@ -15,7 +15,7 @@
                 </div>
             </div>
         </t>
-        <a t-if="more_activities" class="pull-right see_all_activities" href="#">See all activities</a>
+        <a t-if="more_activities" class="float-end see_all_activities" href="#">See all activities</a>
     </t>
 
 </templates>
diff --git a/addons/account/wizard/account_invoice_send_views.xml b/addons/account/wizard/account_invoice_send_views.xml
index b2d4cdc6d91..1f80df4f877 100644
--- a/addons/account/wizard/account_invoice_send_views.xml
+++ b/addons/account/wizard/account_invoice_send_views.xml
@@ -74,7 +74,7 @@
                         <button string="Cancel" class="btn-secondary" special="cancel" data-hotkey="z" />
                         <button icon="fa-lg fa-save" type="object" name="save_as_template" string="Save as new template"
                             attrs="{'invisible': ['|', ('composition_mode', '=', 'mass_mail'), ('is_email', '=', False)]}"
-                            class="pull-right btn-secondary" help="Save as a new template" data-hotkey="w" />
+                            class="float-end btn-secondary" help="Save as a new template" data-hotkey="w" />
                     </footer>
                 </form>
             </field>
diff --git a/addons/hr_holidays/static/src/dashboard/time_off_card.xml b/addons/hr_holidays/static/src/dashboard/time_off_card.xml
index 7ace8f2fde5..0562b286189 100644
--- a/addons/hr_holidays/static/src/dashboard/time_off_card.xml
+++ b/addons/hr_holidays/static/src/dashboard/time_off_card.xml
@@ -44,7 +44,7 @@
         <t t-set="data" t-value="props.data"/>
         <t t-set="duration" t-value="props.requires_allocation ? data.virtual_remaining_leaves : data.virtual_leaves_taken" />
 
-        <span class="pull-right o_timeoff_card_mobile">
+        <span class="float-end o_timeoff_card_mobile">
             <t t-if="props.requires_allocation" name="duration_type">
                 <strong t-esc="duration" class="o_timeoff_green"/> / <span t-esc="data.max_leaves"/> <t t-if="data.request_unit == 'hour'">Hours</t><t t-else="">Days</t> <span class="o_timeoff_green">Available</span>
             </t>
diff --git a/addons/hr_recruitment/views/hr_recruitment_views.xml b/addons/hr_recruitment/views/hr_recruitment_views.xml
index 0be5e8f9595..90518626fa0 100644
--- a/addons/hr_recruitment/views/hr_recruitment_views.xml
+++ b/addons/hr_recruitment/views/hr_recruitment_views.xml
@@ -326,7 +326,7 @@
                             <div class="ribbon ribbon-top-right" attrs="{'invisible': [('date_closed', '=', False)]}">
                                 <span class="bg-success">Hired</span>
                             </div>
-                            <span class="badge badge-pill badge-danger pull-right mr-4" attrs="{'invisible': [('active', '=', True)]}">Refused</span>
+                            <span class="badge badge-pill badge-danger float-end mr-4" attrs="{'invisible': [('active', '=', True)]}">Refused</span>
                             <div class="o_dropdown_kanban dropdown">
                                 <a class="dropdown-toggle o-no-caret btn" role="button" data-toggle="dropdown" href="#" aria-label="Dropdown menu" title="Dropdown menu" data-display="static">
                                     <span class="fa fa-ellipsis-v"/>
diff --git a/addons/hr_skills/static/src/xml/resume_templates.xml b/addons/hr_skills/static/src/xml/resume_templates.xml
index 10d9f86df93..63008c4b31f 100644
--- a/addons/hr_skills/static/src/xml/resume_templates.xml
+++ b/addons/hr_skills/static/src/xml/resume_templates.xml
@@ -37,7 +37,7 @@
 <t t-name="group_add_item">
     <t t-set="empty" t-value="Object.keys(context).length == 2"/>
 
-    <div t-attf-class="o_field_x2many_list_row_add #{empty? 'd-block w-100' : 'd-inline pull-right'}">
+    <div t-attf-class="o_field_x2many_list_row_add #{empty? 'd-block w-100' : 'd-inline float-end'}">
         <div t-if="empty" class="o_resume_empty_helper o_horizontal_separator text-muted my-0">
             <em>Resumé empty</em>
         </div>
diff --git a/addons/hr_timesheet/views/hr_timesheet_views.xml b/addons/hr_timesheet/views/hr_timesheet_views.xml
index b0a1fc36ca0..64ad6129ff3 100644
--- a/addons/hr_timesheet/views/hr_timesheet_views.xml
+++ b/addons/hr_timesheet/views/hr_timesheet_views.xml
@@ -234,7 +234,7 @@
                                             <i class="fa fa-calendar" role="img" aria-label="Date" title="Date"></i>
                                             <t t-esc="record.date.value"/>
                                         </span>
-                                        <span class="pull-right" name="duration">
+                                        <span class="float-end" name="duration">
                                             <strong>Duration: </strong><field name="unit_amount" widget="timesheet_uom" decoration-danger="unit_amount &gt; 24"/>
                                         </span>
                                     </div>
diff --git a/addons/hr_timesheet/views/project_sharing_views.xml b/addons/hr_timesheet/views/project_sharing_views.xml
index 7a9798821a7..2ca497a296e 100644
--- a/addons/hr_timesheet/views/project_sharing_views.xml
+++ b/addons/hr_timesheet/views/project_sharing_views.xml
@@ -61,7 +61,7 @@
                                             <div class="col-6">
                                                 <strong><span><t t-esc="record.employee_id.value"/></span></strong>
                                             </div>
-                                            <div class="col-6 pull-right text-right">
+                                            <div class="col-6 float-end text-right">
                                                 <strong><t t-esc="record.date.value"/></strong>
                                             </div>
                                         </div>
@@ -70,7 +70,7 @@
                                                 <span><t t-esc="record.name.value"/></span>
                                             </div>
                                             <div class="col-6">
-                                                <span class="pull-right text-right">
+                                                <span class="float-end text-right">
                                                     <field name="unit_amount" widget="float_time"/>
                                                 </span>
                                             </div>
diff --git a/addons/hr_timesheet/views/project_views.xml b/addons/hr_timesheet/views/project_views.xml
index 01d39038b2c..3c69e5fb4b4 100644
--- a/addons/hr_timesheet/views/project_views.xml
+++ b/addons/hr_timesheet/views/project_views.xml
@@ -171,7 +171,7 @@
                                             <div class="col-6">
                                                 <strong><span><t t-esc="record.employee_id.value"/></span></strong>
                                             </div>
-                                            <div class="col-6 pull-right text-right">
+                                            <div class="col-6 float-end text-right">
                                                 <strong><t t-esc="record.date.value"/></strong>
                                             </div>
                                         </div>
@@ -180,7 +180,7 @@
                                                 <span><t t-esc="record.name.value"/></span>
                                             </div>
                                             <div class="col-6">
-                                                <span class="pull-right text-right">
+                                                <span class="float-end text-right">
                                                     <field name="unit_amount" widget="float_time"/>
                                                 </span>
                                             </div>
diff --git a/addons/l10n_cl/views/report_invoice.xml b/addons/l10n_cl/views/report_invoice.xml
index e36510c5076..09f80458851 100644
--- a/addons/l10n_cl/views/report_invoice.xml
+++ b/addons/l10n_cl/views/report_invoice.xml
@@ -194,7 +194,7 @@
             <div class="row">
                 <div name="stamp" class="col-4 text-center"/>
                 <div name="transferable-table" class="col-4"/>
-                <div name="transferable-legend" class="col-4 pull-right"/>
+                <div name="transferable-legend" class="col-4 float-end"/>
             </div>
         </xpath>
 
diff --git a/addons/mail/static/src/js/activity.js b/addons/mail/static/src/js/activity.js
index 49fbb3b53a4..8862bebd360 100644
--- a/addons/mail/static/src/js/activity.js
+++ b/addons/mail/static/src/js/activity.js
@@ -751,7 +751,7 @@ var ActivityException = AbstractField.extend({
         if (this.value) {
             this.$el.attr({
                 title: _t('This record has an exception activity.'),
-                class: "pull-right mt-1 text-" + this.value + " fa " + this.recordData.activity_exception_icon
+                class: "float-end mt-1 text-" + this.value + " fa " + this.recordData.activity_exception_icon
             });
         }
     }
diff --git a/addons/mail/static/src/xml/activity_view.xml b/addons/mail/static/src/xml/activity_view.xml
index 453cd3f1fab..096b6095839 100644
--- a/addons/mail/static/src/xml/activity_view.xml
+++ b/addons/mail/static/src/xml/activity_view.xml
@@ -10,7 +10,7 @@
                 t-att-data-activity-type-id="type[0]" t-attf-width="{{100/props.activity_types.length}}%">
                 <div>
                     <span t-esc="type[1]"/>
-                    <span t-if="type[2].length > 0" class="dropdown pull-right">
+                    <span t-if="type[2].length > 0" class="dropdown float-end">
                         <i class="fa fa-ellipsis-v fa-fw" data-toggle="dropdown"/>
                         <div class="dropdown-menu">
                             <t t-foreach="type[2]" t-as="template" t-key="template.id">
diff --git a/addons/mass_mailing/views/mass_mailing_templates_portal.xml b/addons/mass_mailing/views/mass_mailing_templates_portal.xml
index 6e1dbadb8cb..c1f4f6be745 100644
--- a/addons/mass_mailing/views/mass_mailing_templates_portal.xml
+++ b/addons/mass_mailing/views/mass_mailing_templates_portal.xml
@@ -67,9 +67,9 @@
 
                                 <div class="mb64 pt-3">
                                     <div t-if="show_blacklist_button">
-                                        <div class="btn btn-secondary pull-right" id="button_add_blacklist" style="display:none">Blacklist Me</div>
+                                        <div class="btn btn-secondary float-end" id="button_add_blacklist" style="display:none">Blacklist Me</div>
                                     </div>
-                                    <div class="btn btn-secondary pull-right" id="button_remove_blacklist" style="display:none">Come Back</div>
+                                    <div class="btn btn-secondary float-end" id="button_remove_blacklist" style="display:none">Come Back</div>
                                     <button type="submit" id="send_form" class="btn btn-primary">Update my subscriptions</button>
                                 </div>
                             </div>
@@ -113,8 +113,8 @@
                     </div>
 
                     <div t-if="show_blacklist_button" class="mb64">
-                        <div class="btn btn-secondary pull-right" id="button_add_blacklist" style="display:none">Blacklist Me</div>
-                        <div class="btn btn-secondary pull-right" id="button_remove_blacklist" style="display:none">Come Back</div>
+                        <div class="btn btn-secondary float-end" id="button_add_blacklist" style="display:none">Blacklist Me</div>
+                        <div class="btn btn-secondary float-end" id="button_remove_blacklist" style="display:none">Come Back</div>
                     </div>
                 </div>
             </div>
@@ -159,11 +159,11 @@
             </body>
             <xpath expr="//footer" position="replace">
                 <div class="container mt16 mb8">
-                    <div class="pull-right" t-ignore="true" t-if="not editable">
+                    <div class="float-end" t-ignore="true" t-if="not editable">
                         Create a <a target="_blank" href="https://www.odoo.com/app/website">free website</a> with
                         <a target="_blank" class="label label-danger" href="https://www.odoo.com/app/website">Odoo</a>
                     </div>
-                    <div class="pull-left text-muted" itemscope="itemscope" itemtype="https://schema.org/Organization">
+                    <div class="float-start text-muted" itemscope="itemscope" itemtype="https://schema.org/Organization">
                         <t t-call="web.debug_icon"/>
                         Copyright &amp;copy; <span t-field="res_company.name" itemprop="name">Company name</span>
                     </div>
diff --git a/addons/payment/static/src/xml/payment_post_processing.xml b/addons/payment/static/src/xml/payment_post_processing.xml
index 9c8723f5b64..c40c9b788b5 100644
--- a/addons/payment/static/src/xml/payment_post_processing.xml
+++ b/addons/payment/static/src/xml/payment_post_processing.xml
@@ -12,7 +12,7 @@
                         <li class="list-group-item">
                             <h4 class="list-group-item-heading mb5">
                                 <t t-esc="tx['reference']"/>
-                                <span class="badge pull-right"><t t-esc="tx['amount']"/> <t t-esc="tx['currency_code']"/></span>
+                                <span class="badge float-end"><t t-esc="tx['amount']"/> <t t-esc="tx['currency_code']"/></span>
                             </h4>
                             <small class="list-group-item-text">
                                 An error occurred during the processing of this payment.<br/>
@@ -30,7 +30,7 @@
                         <a t-att-href="tx['landing_route']" class="list-group-item">
                             <h4 class="list-group-item-heading mb5">
                                 <t t-esc="tx['reference']"/>
-                                <span class="badge pull-right"><t t-esc="tx['amount']"/> <t t-esc="tx['currency_code']"/></span>
+                                <span class="badge float-end"><t t-esc="tx['amount']"/> <t t-esc="tx['currency_code']"/></span>
                             </h4>
                             <small class="list-group-item-text">
                                 <t t-if="!tx['is_post_processed']">
@@ -48,7 +48,7 @@
                         <a t-att-href="tx['landing_route']" class="list-group-item">
                             <h4 class="list-group-item-heading mb5">
                                 <t t-esc="tx['reference']"/>
-                                <span class="badge pull-right"><t t-esc="tx['amount']"/> <t t-esc="tx['currency_code']"/></span>
+                                <span class="badge float-end"><t t-esc="tx['amount']"/> <t t-esc="tx['currency_code']"/></span>
                             </h4>
                             <small class="list-group-item-text">
                                 <t t-if="tx['display_message']">
@@ -69,7 +69,7 @@
                         <li class="list-group-item">
                             <h4 class="list-group-item-heading mb5">
                                 <t t-esc="tx['reference']"/>
-                                <span class="badge pull-right"><t t-esc="tx['amount']"/> <t t-esc="tx['currency_code']"/></span>
+                                <span class="badge float-end"><t t-esc="tx['amount']"/> <t t-esc="tx['currency_code']"/></span>
                             </h4>
                             <small class="list-group-item-text">
                                 <t t-if="tx['display_message']">
@@ -94,7 +94,7 @@
                         <li class="list-group-item">
                             <h4 class="list-group-item-heading mb5">
                                 <t t-esc="tx['reference']"/>
-                                <span class="badge pull-right"><t t-esc="tx['amount']"/> <t t-esc="tx['currency_code']"/></span>
+                                <span class="badge float-end"><t t-esc="tx['amount']"/> <t t-esc="tx['currency_code']"/></span>
                             </h4>
                             <small class="list-group-item-text">
                                 <t t-if="tx['display_message']">
@@ -118,7 +118,7 @@
                         <li class="list-group-item">
                             <h4 class="list-group-item-heading mb5">
                                 <t t-esc="tx['reference']"/>
-                                <span class="badge pull-right"><t t-esc="tx['amount']"/> <t t-esc="tx['currency_code']"/></span>
+                                <span class="badge float-end"><t t-esc="tx['amount']"/> <t t-esc="tx['currency_code']"/></span>
                             </h4>
                             <small class="list-group-item-text">
                                 This transaction has been cancelled.<br/>
diff --git a/addons/project/views/project_sharing_views.xml b/addons/project/views/project_sharing_views.xml
index 05904481382..34be8d7eb69 100644
--- a/addons/project/views/project_sharing_views.xml
+++ b/addons/project/views/project_sharing_views.xml
@@ -213,7 +213,7 @@
                                     <field name="tag_ids" widget="many2many_tags" options="{'color_field': 'color'}" optional="hide"/>
                                     <field name="kanban_state" widget="state_selection" optional="hide"/>
                                     <field name="stage_id" optional="show"/>
-                                    <button name="action_open_task" type="object" title="View Task" string="View Task" class="btn btn-link pull-right"
+                                    <button name="action_open_task" type="object" title="View Task" string="View Task" class="btn btn-link float-end"
                                             context="{'form_view_ref': 'project.project_sharing_project_task_view_form'}"
                                             attrs="{'invisible': &quot;[('display_project_id', '!=', False), ('display_project_id', '!=', active_id)]&quot;}"/>
                                 </tree>
diff --git a/addons/project/views/project_views.xml b/addons/project/views/project_views.xml
index 2b4f5544154..c59a5705dfe 100644
--- a/addons/project/views/project_views.xml
+++ b/addons/project/views/project_views.xml
@@ -953,7 +953,7 @@
                                     <field name="tag_ids" widget="many2many_tags" options="{'color_field': 'color'}" optional="hide"/>
                                     <field name="kanban_state" required="0" widget="state_selection" optional="show" options="{'hide_label': True}" nolabel="1" class="d-flex justify-content-center"/>
                                     <field name="stage_id" optional="show"/>
-                                    <button name="action_open_task" type="object" title="View Task" string="View Task" class="btn btn-link pull-right"/>
+                                    <button name="action_open_task" type="object" title="View Task" string="View Task" class="btn btn-link float-end"/>
                                 </tree>
                             </field>
                         </page>
diff --git a/addons/stock/views/stock_quant_views.xml b/addons/stock/views/stock_quant_views.xml
index 43cdf55f10c..2ef66d9e41f 100644
--- a/addons/stock/views/stock_quant_views.xml
+++ b/addons/stock/views/stock_quant_views.xml
@@ -341,7 +341,7 @@
                 <field name="priority" widget="priority" nolabel="1" optional="hidden"/>
                 <field name="product_id" attrs="{'readonly': [('id', '!=', False)]}" readonly="context.get('single_product', False)" force_save="1" options="{'no_create': True}"/>
                 <field name="product_categ_id" optional="hide"/>
-                <button name="action_warning_duplicated_sn" type="object" attrs="{'invisible': [('sn_duplicated', '=', False)]}" title="This lot/serial number is already in another location" class="btn btn-secondary text-warning pull-right" icon="fa-warning"/>
+                <button name="action_warning_duplicated_sn" type="object" attrs="{'invisible': [('sn_duplicated', '=', False)]}" title="This lot/serial number is already in another location" class="btn btn-secondary text-warning float-end" icon="fa-warning"/>
                 <field name="lot_id" groups="stock.group_production_lot"
                     attrs="{'readonly': ['|', ('tracking', 'not in', ['serial', 'lot']), '&amp;', ('id', '!=', False), '|', ('lot_id', '!=', False), ('quantity', '!=', 0)]}"
                     invisible="context.get('hide_lot', False)"
diff --git a/addons/web/static/lib/daterangepicker/daterangepicker.js b/addons/web/static/lib/daterangepicker/daterangepicker.js
index 0039ef4d70a..c6e008a2a95 100644
--- a/addons/web/static/lib/daterangepicker/daterangepicker.js
+++ b/addons/web/static/lib/daterangepicker/daterangepicker.js
@@ -57,7 +57,7 @@
         this.ranges = {};
 
         this.opens = 'right';
-        if (this.element.hasClass('pull-right'))
+        if (this.element.hasClass('float-end'))
             this.opens = 'left';
 
         this.drops = 'down';
diff --git a/addons/web/static/src/legacy/js/fields/relational_fields.js b/addons/web/static/src/legacy/js/fields/relational_fields.js
index 68a130935ab..f06e2addb84 100644
--- a/addons/web/static/src/legacy/js/fields/relational_fields.js
+++ b/addons/web/static/src/legacy/js/fields/relational_fields.js
@@ -237,7 +237,7 @@ var FieldMany2One = AbstractField.extend({
     _addAutocompleteSource: function (method, params) {
         this._autocompleteSources.push({
             method: method,
-            placeholder: (params.placeholder ? _t(params.placeholder) : _t('Loading...')) + '<i class="fa fa-spin fa-circle-o-notch pull-right"></i>' ,
+            placeholder: (params.placeholder ? _t(params.placeholder) : _t('Loading...')) + '<i class="fa fa-spin fa-circle-o-notch float-end"></i>' ,
             validation: params.validation,
             loading: false,
             order: params.order || 999
diff --git a/addons/web/static/src/legacy/js/widgets/data_export.js b/addons/web/static/src/legacy/js/widgets/data_export.js
index b491bdb7ae0..f26e9357c40 100644
--- a/addons/web/static/src/legacy/js/widgets/data_export.js
+++ b/addons/web/static/src/legacy/js/widgets/data_export.js
@@ -144,7 +144,7 @@ var DataExport = Dialog.extend({
                 $('<li>', {'class': 'o_export_field', 'data-field_id': fieldID}).append(
                     $('<span>', {'class': "fa fa-sort o_short_field mx-1"}),
                     label.trim(),
-                    $('<span>', {'class': 'fa fa-trash m-1 pull-right o_remove_field', 'title': _t("Remove field")})
+                    $('<span>', {'class': 'fa fa-trash m-1 float-end o_remove_field', 'title': _t("Remove field")})
                 )
             );
         }
diff --git a/addons/web/static/src/legacy/xml/base.xml b/addons/web/static/src/legacy/xml/base.xml
index 44697ccc977..12c4ba9a8fe 100644
--- a/addons/web/static/src/legacy/xml/base.xml
+++ b/addons/web/static/src/legacy/xml/base.xml
@@ -1439,7 +1439,7 @@
                 <t t-if="debug and field.id">
                     (<t t-esc="field.id"/>)
                 </t>
-                <span title="Select field" class="fa fa-plus pull-right m-1 o_add_field"/>
+                <span title="Select field" class="fa fa-plus float-end m-1 o_add_field"/>
             </div>
         </div>
     </t>
diff --git a/addons/web/static/src/webclient/webclient.scss b/addons/web/static/src/webclient/webclient.scss
index 55875b77d02..b4d165e79c8 100644
--- a/addons/web/static/src/webclient/webclient.scss
+++ b/addons/web/static/src/webclient/webclient.scss
@@ -131,6 +131,18 @@ $o-inline-spacers: map-merge($spacers, ('auto': auto));
   }
 }
 
+// == Float Classes
+//------------------------------------------------------------------------------
+// "Bootstrap v5 ready" utility-classes to float elements to the left or right.
+// These classes definitions can be safely removed after migrating to BTS v5.
+
+.float-start {
+  float: left !important;
+}
+.float-end {
+  float: right !important;
+}
+
 //== Badges
 .badge {
   min-width: $o-badge-min-width;
diff --git a/addons/website_hr_recruitment/views/hr_recruitment_views.xml b/addons/website_hr_recruitment/views/hr_recruitment_views.xml
index e8b6d3aaf3b..fe939d4596e 100644
--- a/addons/website_hr_recruitment/views/hr_recruitment_views.xml
+++ b/addons/website_hr_recruitment/views/hr_recruitment_views.xml
@@ -20,7 +20,7 @@
                 <field name="url"/>
             </xpath>
             <xpath expr="//div[hasclass('o_kanban_record_body')]/div" position="before">
-                <div class="pull-left">
+                <div class="float-start">
                     <a role="button" t-att-href="record.url.value" title="share it" class="fa fa-share-alt"/>
                 </div>
             </xpath>
diff --git a/odoo/addons/base/views/res_config_settings_views.xml b/odoo/addons/base/views/res_config_settings_views.xml
index 3e5369089a3..d7d552f0f44 100644
--- a/odoo/addons/base/views/res_config_settings_views.xml
+++ b/odoo/addons/base/views/res_config_settings_views.xml
@@ -12,7 +12,7 @@
                                 <li class="breadcrumb-item active">Settings</li>
                             </ol>
                             <div class="o_setting_search">
-                                <input type="text" class="searchInput pull-right p-0 pb-1" placeholder="Search..."/>
+                                <input type="text" class="searchInput float-end p-0 pb-1" placeholder="Search..."/>
                                 <span class="searchIcon"><i class="fa fa-search" role="img" aria-label="Search" title="Search"/></span>
                             </div>
                         </div>