diff --git a/addons/project/i18n/project.pot b/addons/project/i18n/project.pot
index e126c69bb13..5071981ebb7 100644
--- a/addons/project/i18n/project.pot
+++ b/addons/project/i18n/project.pot
@@ -1649,11 +1649,20 @@ msgstr ""
 #: model:ir.model.fields,help:project.field_project_project__privacy_visibility
 #: model:ir.model.fields,help:project.field_project_task__project_privacy_visibility
 msgid ""
-"Defines the visibility of the tasks of the project:\n"
-"- Invited internal users: internal users may only see the followed project and tasks.\n"
-"- All internal users: internal users may see all project and tasks.\n"
-"- Invited portal users and all internal users: internal users may see everything.   Invited portal users may see project and tasks followed by.\n"
-"   them or by someone of their company."
+"People to whom this project and its tasks will be visible.\n"
+"\n"
+"- Invited internal users: when following a project, internal users will get access to all of its tasks without distinction. Otherwise, they will only get access to the specific tasks they are following.\n"
+" A user with the project > administrator access right level can still access this project and its tasks, even if they are not explicitly part of the followers.\n"
+"\n"
+"- All internal users: all internal users can access the project and all of its tasks without distinction.\n"
+"\n"
+"- Invited portal users and all internal users: all internal users can access the project and all of its tasks without distinction.\n"
+"When following a project, portal users will get access to all of its tasks without distinction. Otherwise, they will only get access to the specific tasks they are following.\n"
+"\n"
+"When a project is shared in read-only, the portal user is redirected to their portal. They can view the tasks, but not edit them.\n"
+"When a project is shared in edit, the portal user is redirected to the kanban and list views of the tasks. They can modify a selected number of fields on the tasks.\n"
+"\n"
+"In any case, an internal user with no project access rights can still access a task, provided that they are given the corresponding URL (and that they are part of the followers if the project is private)."
 msgstr ""
 
 #. module: project
diff --git a/addons/project/models/project.py b/addons/project/models/project.py
index a227c6a3bb3..9b5335a8000 100644
--- a/addons/project/models/project.py
+++ b/addons/project/models/project.py
@@ -314,12 +314,17 @@ class Project(models.Model):
         ],
         string='Visibility', required=True,
         default='portal',
-        help="Defines the visibility of the tasks of the project:\n"
-            "- Invited internal users: internal users may only see the followed project and tasks.\n"
-            "- All internal users: internal users may see all project and tasks.\n"
-            "- Invited portal users and all internal users: internal users may see everything."
-            "   Invited portal users may see project and tasks followed by.\n"
-            "   them or by someone of their company.")
+        help="People to whom this project and its tasks will be visible.\n\n"
+            "- Invited internal users: when following a project, internal users will get access to all of its tasks without distinction. "
+            "Otherwise, they will only get access to the specific tasks they are following.\n "
+            "A user with the project > administrator access right level can still access this project and its tasks, even if they are not explicitly part of the followers.\n\n"
+            "- All internal users: all internal users can access the project and all of its tasks without distinction.\n\n"
+            "- Invited portal users and all internal users: all internal users can access the project and all of its tasks without distinction.\n"
+            "When following a project, portal users will get access to all of its tasks without distinction. Otherwise, they will only get access to the specific tasks they are following.\n\n"
+            "When a project is shared in read-only, the portal user is redirected to their portal. They can view the tasks, but not edit them.\n"
+            "When a project is shared in edit, the portal user is redirected to the kanban and list views of the tasks. They can modify a selected number of fields on the tasks.\n\n"
+            "In any case, an internal user with no project access rights can still access a task, "
+            "provided that they are given the corresponding URL (and that they are part of the followers if the project is private).")
     doc_count = fields.Integer(compute='_compute_attached_docs_count', string="Number of documents attached")
     date_start = fields.Date(string='Start Date')
     date = fields.Date(string='Expiration Date', index=True, tracking=True)