Another distro that’s easy to get going for gaming is Garuda.
Also, the easiest way to switch to any distro is to get a USB drive and install a program called Ventoy. Then you throw your install iso onto the Ventoy drive, boot from USB, and you’re good to go.
As a tip, pick up an external drive large enough for your Steam library. Then in Steam, you right click on each game and select Manage/Back up game files.
Doing it this way will save you days of downloading.
The Factorio dev. I’ve heard he’s a shit person but not dove deeper into it.
Edit; did some looking and yeah, he’s a shitbag. He claimed that Statutory Rape was a SJW term, and that teachers should be able to seduce their students as long as they weren’t violent.
Then he used a dev blog to link to a racist misogynistic jackass, and when called out on it (The guy just wanted a disclaimer on the link) Korvex went on a rant about cancel culture and then tried to defend the misogynistic views, claiming that “maybe there’s a reason why there are so few women coders”
Almost any is fine, but if you want a distro optimized for gaming, Garuda has been treating me quite well.