Yeah, GuildWars2, Valheim, Pathfinder WotR, etc. those sort of games… So I’m a bit niche, some gamers have more issues than I.
I got a gnome-session installed for games that have problems with COSMIC but fortunately haven’t needed it for a while now.
I started with Slackware in the late nineties. Have been through Redhat, Suse, Ubuntu, Arch, Tumbleweed. These days I just can’t be bothered, I just want to game and code and I prefer an out of the box well configured Ubuntu derivative, they also upgrade easily and have lots of application compatibility - mostly everyone provides .deb packages. I could also choose Fedora for these reasons.
So now on Pop!_OS 24.04. Pop is has a stable/lts base but still gets Mesa/Nvidia/Kernel updates on a regular basis. I use it mainly for gaming and Rust dev, writing some COSMIC applets as well.
COSMIC Alpha does still have problems with some games but not the games I play.