When I listen to Roon using my iPhone 11 as a controller, I can only see a certain number of “recently added” albums. Is this a restriction for iOS via a phone? No problem when accessing Roon via my iPad.
I have similar issues with my android note 9. I believe the issue is screen size and the difference in the UI. I recently discovered I can find what i want by going to the menu and selecting albums to get the full list. There could be other ways I have not found yet.