What's the issue with the UI?
Two panes you can switch by swipe, select a file or folder and do something with it.
You can play with it with some copied data, so nothing breaks and you learn.
Then enjoy the power.
I agree that should not be needed for normal app users. But the transition to cope with those new Android 11 limitations is painful. For the creators as well as for the users with the fallout of it.
Once Menion properly deals with /Android/media folders on that upper level, thing will become much easier, also in the interaction between Apps that need the maps and SRTM mass data, and should not be forced to duplicate it.