It's the same for all file managers and the previous way of granting access is now patched via security fixes. If it's still working for you that's very likely because you granted the access before it was fixed, and if you move to a new phone you also likely won't be able to do that any more.

Thank you! I have been searching for a file manager to access e.g. application files. I can not believe this works!

Tested in Samsung Note 10 Lite, recently upgraded to Android 13.