I can vouch for Fedora, I used plenty of distros from Arch to Ubuntu (and many of it's forks) and even weird outliers like Solus and Fedora is the most boring distro out of all of them, and I mean that in the best way. To quote a certain Todd: "It just works!" Do note you will probably want to enable RPM fusion (basically mandatory if you use nVidia) to get access to useful non open source and license encumbered packages Fedora can't ship by default (like media codecs). Other than that, install Steam and whatever other launchers you want and enjoy a boring, reliable distro.