If you keep within the file system (e.g. don’t format anything or write to the device itself), are capable of executing a few commands in a terminal, and know how to boot from a live linux in case something goes wrong, you should be fine using snapshots, I’d say

There is a plugin in the cura market place that tries to do this. Not sure how good it is

It also means updates are just full system images, so no way for a package manager or differential update to mess anything up. It also means no way of downloading tiny differential updates (if I understand everything correctly).

If you don’t need DX or would like to switch off of KDE, there are other fedora atomic desktop based distributions available.

Oh right, a distribution is just an image, so switching distributions is as simple as switching the base OS image and rebooting.