Around the time of the FP3 release I stumbled over a Tweet by someone working on a convenient backup solution for Android that would work similar to the Google Cloud backup
Meanwhile they have version 1 out and the video description looks quite impressive, see https://calyxinstitute.org/projects/seedvault-encrypted-backup-for-android
Back then the author mentioned on twitter that this backup solution (Seedvault) requires Android 10.
So it should be possible to include that when building LOS 17 for the FP2, right?
Should be similar to Building with AOSP I guess.