Linux needs more GUIs for managing complex settings.

openSUSE has YaST which covers almost all complex settings… it’s not perfect, but it tries

I wouldn’t go with Opensuse or Fedora for gaming.

Why? I use openSUSE Tumbleweed for gaming and it’s been rock solid. Seriously, I’ve never really had any issues. It has its quirks, but they are easily “fixed” by adding Packman and the Nvidia repos… and running an update.

I’ve tried Ubuntu multiple times and it was always a shitshow disaster. Mint was OK-ish, but had Ubuntu-related silliness.