Nobara is pretty good for a “just works” gaming-centric distro. The issue that you’re coming across is plain and simple, PopOS is severly outdated. Most of System76’s dev team are likely working on COSMIC.
If you want the absolute most, contiuously up-to-date packages, then I can’t recommend anything other than Arch. I’ve used it as my daily driver for a little over 2 years now and I’ve always come crawling back if I try something else. Gaming on it isn’t a hassle, most of the time it just works, not to be a stereotypical Arch user but do read the Wiki. Arch was also my first ever distro, a friend got me into it.
If Arch is a bit dawnting for you then something Arch-based is just as good, from experience I recommend EndeavourOS. Do not use Manjaro.