Yeah, snapper just works better with btrfs in my experience, but timeshift is fine too.

Arch is great for gaming. Also, if you’re familiar with how Linux works, Arch pretty much gets out of your way. Just have btrfs with snapper for rolling back any mistakes. (Although, I’ve only had to do that once in the last 5 years or so on Arch. And I was trying to replace the graphics driver, so kinda on me.)