Reduce Android version requirement

[link2xt]

The app requires Android 11.

I found alternative https://f-droid.org/en/packages/com.google.android.diskusage/ but it does not have easy-to-use interface (starting with a confusing "View" dialog that only shows "Storage card" for non-rooted phone) so I cannot recommend it to anyone.

Is it possible to reduce the requirements to support lower versions of Android (ideally down to Android 5)?