Requesting `MANAGE_EXTERNAL_STORAGE` should additionally grant access to unreliable/removable volumes like USB OTG devices under the `/mnt/media_rw/XXXX-XXXX` paths on `Android >= 12`, so request that if possible. Check https://github.com/termux/termux-app/issues/71#issuecomment-1869222653 for more info.
Fixes issue on Android `14`, where using `targetSdkVersion=28`, that requests the legacy `WRITE_EXTERNAL_STORAGE` will actually request the `photos, music, video, and other files` permissions (`READ_MEDIA_AUDIO`/`READ_MEDIA_IMAGES`/`READ_MEDIA_VIDEO`) and apparently access to full external storage `/sdcard` is not available for some users, maybe because `READ_EXTERNAL_STORAGE` and `WRITE_EXTERNAL_STORAGE` permissions are not granted for those device automatically in addition to `READ_MEDIA_*` permission. The issue is not reproducible on Android `13-15` avd. To solve this, we request the singular `MANAGE_EXTERNAL_STORAGE` permission instead so that full access is always available.
Related: https://github.com/termux/termux-app/issues/3647#issuecomment-2137266012
See also:
- https://developer.android.com/training/data-storage/shared/media#access-other-apps-files
- https://developer.android.com/reference/android/Manifest.permission#READ_MEDIA_IMAGES
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