useManageExternalStoragePermission property
States whether to use the Android's Manage External Storage permission.
Requesting this permission will enable full access to all external storage
on Android 10 (API level 29) and higher.
This will enable the app access to all folders on the devices
and therefore will allow backups to be restored without the user having
to provide a specific backup document.
This flag will be set to false by default because of security conserns
when using the Manage External Storage permission. More information:
https://support.google.com/googleplay/android-developer/answer/9214102#zippy=
Implementation
final bool useManageExternalStoragePermission;