I never needed it. I know from my school days that windows supports that use case. You get a full system and can do with it as you please but on reboot you get a completely fresh file system. The only thing that persisted were the user profiles that roamed through active directory. Seemingly there was no way of tampering with the file system, that would persist a reboot. And as school kids we tried hard 😅
I would be surprised if Linux didn’t have utilities for that, that were better designed and safer - but again, not my expertise.
Sorry for the confusion 😅 I don’t have any experience with NixOS apart from memes here in Lemmy. So… maybe?
Yes, I love atomic distros and I’m glad the term was changed.