I did manage to hide them by forcing custom posts capabilities in the settings.
That said, when I edit Elementor content I get :
Warning: Array to string conversion in …./user-role-editor-pro/pro/includes/classes/posts-edit-access-user.php on line 960
Warning: Array to string conversion in ….user-role-editor-pro/pro/includes/classes/posts-edit-access-user.php on line 675
Any idea where it comes from ? It happens only when editing the elementor content.