is it possible to back up the settings of the Android system and restore them after a factory reset?
Or where are the Android settings saved (such as the arrangement of widgets, text size, display settings, etc.)?
For Samsung devices, there is a programme called “Smart Switch”, which can very reliably restore the existing settings to a new device or to the same device after a factory reset.
If this is not yet available for Fairphone, is it possible for root users to do this manually (backup and restore the Android settings)?