The Steam Survey found that Linux is a 1% share of the market. A rare breed.
According to NetMarketShare the overall Linux desktop and laptop adoption is 1.79%. With a share that is a bit more than half of all users, I guess gamers aren’t as geeky as I thought. Or Windows just has a stranglehold on the gaming market.
I’m not a huge gamer but I’ve got a few favorites that I play from time to time and they work great on Ubuntu 20.04.