Android 11 made some big changes to the Scoped Storage functionality that Google began to implement with Android 10. One of the biggest user-facing changes is removing access to the "Android/data" folder, blocking all apps (including file managers) from accessing any data within it.
https://www.reddit.com/r/Android/comments/j3zgmm/managing_files_in_the_androiddata_folder_on/
This does make editing file settings a PITA.
The Copy/Paste from internal file Explorer app is working on Android 11.
Samsun a53 is on Android 12.
Can't seem to read android/data in anything.
Solid Explorer NO
Samsung My Files NO
Files worked 2nd time? WTF. Sometimes it works sometimes it doesn't check perms. Read only access. Still no write access at all.
To write MUST connect to PC over USB.