diff --git a/addons/mail/static/src/web/activity/activity_button.js b/addons/mail/static/src/web/activity/activity_button.js
index 4b43f3ac32e..852577c3ab6 100644
--- a/addons/mail/static/src/web/activity/activity_button.js
+++ b/addons/mail/static/src/web/activity/activity_button.js
@@ -2,6 +2,8 @@
 
 import { ActivityListPopover } from "@mail/web/activity/activity_list_popover";
 
+import { _t } from "@web/core/l10n/translation";
+
 import { usePopover } from "@web/core/popover/popover_hook";
 
 import { Component, useRef } from "@odoo/owl";
@@ -51,6 +53,19 @@ export class ActivityButton extends Component {
         return classes.join(" ");
     }
 
+    get title() {
+        if (this.props.record.data.activity_exception_decoration) {
+            return _t("Warning");
+        }
+        if (this.props.record.data.activity_summary) {
+            return this.props.record.data.activity_summary;
+        }
+        if (this.props.record.data.activity_type_id) {
+            return this.props.record.data.activity_type_id[1 /* display_name */];
+        }
+        return _t("Show activities");
+    }
+
     onClick() {
         if (this.popover.isOpen) {
             this.popover.close();
diff --git a/addons/mail/static/src/web/activity/activity_button.xml b/addons/mail/static/src/web/activity/activity_button.xml
index 3397b59620e..c4e24ef33e8 100644
--- a/addons/mail/static/src/web/activity/activity_button.xml
+++ b/addons/mail/static/src/web/activity/activity_button.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <templates xml:space="preserve">
     <t t-name="mail.ActivityButton" owl="1">
-        <a class="o-mail-ActivityButton" role="button" t-on-click.prevent.stop="onClick" t-ref="button">
+        <a class="o-mail-ActivityButton" role="button" t-on-click.prevent.stop="onClick" t-ref="button" t-att-aria-label="title" t-att-title="title">
             <i class="fa fa-fw fa-lg" t-att-class="buttonClass" role="img"/>
         </a>
     </t>
diff --git a/addons/project/static/src/components/project_task_state_selection/project_task_state_selection.xml b/addons/project/static/src/components/project_task_state_selection/project_task_state_selection.xml
index 01fa04f737a..e901287eba5 100644
--- a/addons/project/static/src/components/project_task_state_selection/project_task_state_selection.xml
+++ b/addons/project/static/src/components/project_task_state_selection/project_task_state_selection.xml
@@ -41,7 +41,7 @@
 
         <!-- Normal dropdown mode toggle button (displayed on the card/record by default) -->
         <xpath expr="//t[@t-set-slot='toggler']/div" position="replace">
-            <div t-if="isView(['kanban', 'list']) or this.env.isSmall" class="d-flex align-items-center" t-att-class="{'o_task_state_list_view': isView(['list'])}">
+            <div t-if="isView(['kanban', 'list']) or this.env.isSmall" class="d-flex align-items-center" t-att-class="{'o_task_state_list_view': isView(['list'])}" t-att-title="label">
                 <i t-if="currentValue == '04_waiting_normal'" t-attf-class="{{ stateIcon(currentValue) }} {{ statusColor(currentValue) }}" style="color: #4A4F59;"/>
                 <i t-else="" t-attf-class="{{ stateIcon(currentValue) }} {{ statusColor(currentValue) }} {{ ['1_done', '1_canceled'].includes(currentValue) and isView(['kanban']) ? 'opacity-50' : '' }}"/>
             </div>
diff --git a/addons/web/static/src/views/fields/state_selection/state_selection_field.xml b/addons/web/static/src/views/fields/state_selection/state_selection_field.xml
index 96d35131481..086c6d384d0 100644
--- a/addons/web/static/src/views/fields/state_selection/state_selection_field.xml
+++ b/addons/web/static/src/views/fields/state_selection/state_selection_field.xml
@@ -11,7 +11,7 @@
         <t t-else="">
             <Dropdown togglerClass="'btn btn-link d-flex p-0'">
                 <t t-set-slot="toggler">
-                    <div class="d-flex align-items-center">
+                    <div class="d-flex align-items-center" t-att-title="props.showLabel ? null : label">
                         <span t-attf-class="o_status {{ statusColor(currentValue) }} "/>
                         <span t-if="props.showLabel" class="o_status_label ms-1" t-esc="label"/>
                     </div>