I've been using Fedora Kinoite and I love it. I wanted the same use case you wanted. Pretty much something that gets out of the way and keeps on working.
Too be fair, I was mostly inspired to use it because of the Steam Deck. Kinoite is an immutable OS, so it will prevent you from modifying core system files accidentally. It does have a small learning curve, such as learning flatpak permissions and using Distrobox/Toolbox to install cli applications, but I mostly use my computers as a gaming station where I chuck steam, a browser, and a few other tools in there and leave most things as default.
I always feel like my OS is "clean" despite having used it for a year, which is really cool. I'm curious what others might think of it as an easy distro though (it is for me, at least)
I've been absolutely slamming Persona 5 Royal. I've ran into a couple odd hard freezes with the game, but I'm about 60 hours in at this point so it clearly hasn't stopped me.
Would absolutely recommend!