you might want to read what @ewpatton said here (Take image and save to app) camera component still asks for WRITE permission - #38 by ewpatton
we strongly recommend that folks stop the practice of writing to arbitrary locations as it's already restricted in Android 11 and as newer versions of Android continue to come out, you likely won't have the luxury of writing wherever you want. We are hoping that by defaulting to App scope most people will follow the newer constraints imposed by Android and not get surprised later when upgrading their OS or phone.
Taifun