If you want a Linux distro with simple rollbacks and stable updates, ObsidianOS is worth a look.

https://itsfoss.com/obsidianos-review/

ObsidianOS Review: A New, Innovative Linux Distro Built Around A/B Partitioning

The idea to rollback via two root partitions is interesting. This is certainly not your regular rethemed Arch distro.

It's FOSS
@itsfoss what do you think of @elementary