All the Users irrespective of their roles are able to see the apps in the left side i.e clicking on the Dynamics 365 down arrow in top left corner.

when a user who is not in part of roles assigned will still be able to see the list of all the apps under the logged in instance.

However, when he choose any of the apps to access, the access is denied with the error message stating �Does not have enough permission�.

But as per the functionality The App should not be visible to the users. Only the apps that have the roles assigned as per the user should be able to access.