

Bazzite uses BTRFS, but not snapshots I think.
Opensuse microOS flavors go all-in on full system snapshots but that means they also have a bad grub encryption unlock interface (instead of Plymouth). I have had some funky things with it like it missing keystrokes and if you get it wrong once, you have to reboot your entire system instead of just retrying.
Other OS’s use home folder snapshots only or something like that?
The different variants are not quite clear to me.










Except not on most phones, just a small subset of old phones.