GrapheneOS has Storage Scopes which allow you to define which folders an app can access. In this case, you’d give your media app access to that folder but not your gallery app. Pretty handy but it’s only on Pixels and one Motorola phone at the moment.

Are there access controls on this door such as a badge/RFID reader? I’ve seen electric strikes on access controlled doors stay pretty warm.

My guess is they’re incorrectly basing it on the 40oz size (which does exist). Buyer beware!