I have kubuntu on my laptop but have been using windows 10 ltsc on my desktop for the last 6 or 7 years. I've heard that lots of progress on linux gaming has been made since the steam deck was launched a few years ago and am considering switching my gaming pc over, any recommendations?
I'm on NixOS but wouldn't recommend it unless you enjoy the process of tinkering to get things exactly as you like.
SteamOS is arch based so I suppose you'd get the best support on an arch distro. I've heard good things about endeavorOS if you don't want to deal with the normal arch install.