diff --git a/addons/website_slides/controllers/main.py b/addons/website_slides/controllers/main.py
index eeb268d06e9..8090db84699 100644
--- a/addons/website_slides/controllers/main.py
+++ b/addons/website_slides/controllers/main.py
@@ -513,49 +513,14 @@ class WebsiteSlides(WebsiteProfile):
             'slide_types': slide_types,
             'sorting': actual_sorting,
             'search': search,
-            # chatter
-            'rating_avg': channel.rating_avg,
-            'rating_count': channel.rating_count,
             # display data
             'user': request.env.user,
             'pager': pager,
             'is_public_user': request.website.is_public_user(),
             # display upload modal
             'enable_slide_upload': 'enable_slide_upload' in kw,
+            ** self._slide_channel_prepare_review_values(channel),
         }
-        if not request.env.user._is_public():
-            last_message = request.env['mail.message'].search([
-                ('model', '=', channel._name),
-                ('res_id', '=', channel.id),
-                ('author_id', '=', request.env.user.partner_id.id),
-                ('message_type', '=', 'comment'),
-                ('is_internal', '=', False)
-            ], order='write_date DESC', limit=1)
-            if last_message:
-                last_message_values = last_message.read(['body', 'rating_value', 'attachment_ids'])[0]
-                last_message_attachment_ids = last_message_values.pop('attachment_ids', [])
-                if last_message_attachment_ids:
-                    # use sudo as portal user cannot read access_token, necessary for updating attachments
-                    # through frontend chatter -> access is already granted and limited to current user message
-                    last_message_attachment_ids = json.dumps(
-                        request.env['ir.attachment'].sudo().browse(last_message_attachment_ids).read(
-                            ['id', 'name', 'mimetype', 'file_size', 'access_token']
-                        )
-                    )
-            else:
-                last_message_values = {}
-                last_message_attachment_ids = []
-            values.update({
-                'last_message_id': last_message_values.get('id'),
-                'last_message': tools.html2plaintext(last_message_values.get('body', '')),
-                'last_rating_value': last_message_values.get('rating_value'),
-                'last_message_attachment_ids': last_message_attachment_ids,
-            })
-            if channel.can_review:
-                values.update({
-                    'message_post_hash': channel._sign_token(request.env.user.partner_id.id),
-                    'message_post_pid': request.env.user.partner_id.id,
-                })
 
         # fetch slides and handle uncategorized slides; done as sudo because we want to display all
         # of them but unreachable ones won't be clickable (+ slide controller will crash anyway)
@@ -618,6 +583,50 @@ class WebsiteSlides(WebsiteProfile):
             'allow_comment': bool(kw.get('allow_comment')),
         }
 
+    def _slide_channel_prepare_review_values(self, channel):
+        values = {
+            'rating_avg': channel.rating_avg,
+            'rating_count': channel.rating_count,
+        }
+
+        if not request.env.user._is_public():
+            last_message = request.env['mail.message'].search([
+                ('model', '=', channel._name),
+                ('res_id', '=', channel.id),
+                ('author_id', '=', request.env.user.partner_id.id),
+                ('message_type', '=', 'comment'),
+                ('is_internal', '=', False)
+            ], order='write_date DESC', limit=1)
+
+            if last_message:
+                last_message_values = last_message.read(['body', 'rating_value', 'attachment_ids'])[0]
+                last_message_attachment_ids = last_message_values.pop('attachment_ids', [])
+                if last_message_attachment_ids:
+                    # use sudo as portal user cannot read access_token, necessary for updating attachments
+                    # through frontend chatter -> access is already granted and limited to current user message
+                    last_message_attachment_ids = json.dumps(
+                        request.env['ir.attachment'].sudo().browse(last_message_attachment_ids).read(
+                            ['id', 'name', 'mimetype', 'file_size', 'access_token']
+                        )
+                    )
+            else:
+                last_message_values = {}
+                last_message_attachment_ids = []
+
+            values.update({
+                'last_message_id': last_message_values.get('id'),
+                'last_message': tools.html2plaintext(last_message_values.get('body', '')),
+                'last_rating_value': last_message_values.get('rating_value'),
+                'last_message_attachment_ids': last_message_attachment_ids,
+            })
+            if channel.can_review:
+                values.update({
+                    'message_post_hash': channel._sign_token(request.env.user.partner_id.id),
+                    'message_post_pid': request.env.user.partner_id.id,
+                })
+
+        return values
+
     @http.route('/slides/channel/enroll', type='http', auth='public', website=True)
     def slide_channel_join_http(self, channel_id):
         # TDE FIXME: why 2 routes ?
@@ -730,12 +739,13 @@ class WebsiteSlides(WebsiteProfile):
 
         values['channel'] = slide.channel_id
         values = self._prepare_additional_channel_values(values, **kwargs)
-        values.pop('channel', None)
-
         values['signup_allowed'] = request.env['res.users'].sudo()._get_signup_invitation_scope() == 'b2c'
 
         if kwargs.get('fullscreen') == '1':
+            values.update(self._slide_channel_prepare_review_values(slide.channel_id))
             return request.render("website_slides.slide_fullscreen", values)
+
+        values.pop('channel', None)
         return request.render("website_slides.slide_main", values)
 
     @http.route('''/slides/slide/<model("slide.slide"):slide>/pdf_content''',
diff --git a/addons/website_slides/views/website_slides_templates_lesson_fullscreen.xml b/addons/website_slides/views/website_slides_templates_lesson_fullscreen.xml
index 2fa732b2ac5..e56619d0d57 100644
--- a/addons/website_slides/views/website_slides_templates_lesson_fullscreen.xml
+++ b/addons/website_slides/views/website_slides_templates_lesson_fullscreen.xml
@@ -18,8 +18,25 @@
                     <a class="o_wslides_fs_toggle_sidebar d-flex align-items-center px-3" href="#" title="Lessons">
                         <i class="fa fa-bars"/><span class="d-none d-md-inline-block ml-1">Lessons</span>
                     </a>
-                    <a class="o_wslides_fs_review d-flex align-items-center px-3" t-att-href="slide.channel_id.website_url + '?active_tab=review'" title="Reviews" t-if="slide.channel_id.allow_comment">
-                        <i class="fa fa-pencil"/><span class="d-none d-md-inline-block ml-1">Write a review</span>
+                    <a class="o_wslides_fs_review d-flex align-items-center" title="Reviews" t-if="slide.channel_id.allow_comment">
+                        <t t-call="portal_rating.rating_stars_static_popup_composer">
+                            <t t-set="rating_avg" t-value="rating_avg"/>
+                            <t t-set="rating_total" t-value="rating_count"/>
+                            <t t-set="object" t-value="channel"/>
+                            <t t-set="token" t-value="channel.access_token"/>
+                            <t t-set="hash" t-value="message_post_hash"/>
+                            <t t-set="pid" t-value="message_post_pid"/>
+                            <t t-set="default_message" t-value="last_message"/>
+                            <t t-set="default_message_id" t-value="last_message_id"/>
+                            <t t-set="default_rating_value" t-value="last_rating_value"/>
+                            <t t-set="default_attachment_ids" t-value="last_message_attachment_ids"/>
+                            <t t-set="force_submit_url" t-value="'/slides/mail/update_comment' if last_message_id else False"/>
+                            <t t-set="disable_composer" t-value="not channel.can_review"/>
+                            <t t-set="_link_btn_classes" t-value="'d-inline-block text-white font-weight-light shadow-none'"/>
+                            <t t-set="icon" t-value="'fa fa-pencil'"/>
+                            <t t-set="_text_classes" t-value="'d-none d-md-inline-block'"/>
+                            <t t-set="hide_rating_avg" t-value="True"/>
+                        </t>
                     </a>
                     <a class="o_wslides_fs_share d-flex align-items-center px-3" href="#" title="Share">
                         <i class="fa fa-share-alt"/><span class="d-none d-md-inline-block ml-1">Share</span>