Depending on what games you are playing, it should be a breeze. I ditched my windows installation last march and no regrets so far. Most of the games I enjoy run OOB in Linux, but some that I played occasionally are not supported, so I just live without them.
He has a Nvidia card, I had a really bad UX with my rtx 4080 with Wayland a few weeks ago. There's a protocol that just got merged supporting explicitly sync last week that may get Nvidia better with Wayland in the upcoming months though.