I'm an Admin. In the Dashboard of my Authors, the Author sees every other Author's name, email address (in filters) and courses. That's great for Admins, but Authors should see ONLY their own courses and only the students signed up for their courses. This also applies to Bundles, Memberships, Coaching and Communities.
Ideally, Admins could have a setting when assigning an Author to allow or disallow the Author to see all the Admin's courses. The main thing is that Authors should only see their own courses.