[BRX]

What exactly is the condition that signals a relative path for MSP on Android?
I manage my files myself and plan to reorganise them in a way that I can just copy mobilesheets.db from a Win10 device to an Android device and vice versa.

Well, that already works so far and I synchronize my Android devices and W10 with dropbox (but soon with resilio sync) with some small caveats. If you just copy your database (assuming it already has relative paths) then you should have no problem.

But changing the storage location on Android is problematic as Mike said.