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.