unwat With Storage Scopes on (no folders or files added in the storage scopes settings), WhatsApp thinks it has access to EVERYTHING
Perhaps I'm still misunderstanding this, or perhaps there's a bug with SAF that lets apps determine whether they actually have "access to everything"...
The app Automagic requires access to all shared storage, i.e. the Internal/ folder as part of its setup steps. With SAF, I cannot grant it this access, so I created a folder Internal/Automagic/ and gave it scoped access to that. Yet, Automagic somehow knows it doesn't truly have full access, and it refuses to proceed past this step in the setup.
Obviously, the best scenario would be if the app required less broad permissions, but it is feature-complete and not under active development, so it's unlikely to get updated. Therefore, it seems like the best way to proceed would be:
A) Find and close whatever loophole Automagic uses to determine the true state of its storage access
AND/OR
B) Give users the ability to make an informed decision when granting storage access, up to and including the entire Internal/ folder. (This would also make it much easier to set up things like image gallery and file manager apps)