Arch is great, but it can be a bit much for someone to jump straight into. It’s definitely gotten easier in the past few years, but there can be quite a bit of optimization to do to bring gaming performance up to (or past) Windows levels.
My recommendation for a newcomer would be Nobara. It’s a version of Fedora heavily customized specifically for gaming, and it’s run by a developer who does a ton of work for the Linux gaming scene (all hail GloriousEggroll).