Just choose something you can wrap your head around and start from there. No need to jump to anything complicated like Arch linux.
I first started gaming on openSUSE and then moved to Fedora. Can't say I don't have to look around for answers to run some games but I'm more than happy with the experience in general. I play some older games like Deus Ex, Baldur's gate and such, but I also play Cyberpunk 2077, Stray and Marvel's Spider-man Remastered without any real issues.
Also, let's be realistic about it - arm yourself with a bit of patience, because the process of installing games could be as simple as clicking install and then play, but it could also require some tinkering to get some games running smoothly.