With immutable distros you can try a silverblue and switch to kinoite with a reboot on an already running system and it will just work and run your flatpaks. The base image it runs does not get corrupted. You cannot make changes (easily) to the base to corrupt it. Your apps and files are just an overlay or mounts on top of the system. Your machine lights on fire, if you have a network backup, it will fire up on any hardware and be the same. It’s much cleaner and allows for easy os switching.

You could theoretically make windows work and be switchable.