Check out bazzite.gg - it’s a gaming spin of Fedora atomic and I’ve heard nothing but good things.
Otherwise there’s always Arch, or a derivative like EndeavourOS, that’s where I do my steam gaming. I have, on occasion, had issues with the Nvidia dkms driver and have needed to fork the nvidia-dkms package to track a particular driver release to skip a buggy version. Aside from that it’s been pretty smooth sailing. I use flatpak steam and ProtonPlus to pull Glorious Eggroll releases and everything I’ve played has worked well.