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?
Fedora Linux. It's well made and not Gamer-ified. Though I do admit Nobara (aka Gamer Fedora) does do a lot of changes I would personally make to a Fedora installation. However, it does a lot of things I also wouldn't do.