This comment literally asks him to go check to see if his games work with Linux, and that he needs specific hardware for that compatibility to be meaningfully successful. The alternative is he just uses Windows and plays his games. It's exactly the type of "extra steps" that he wants to avoid.
I use Linux systems daily, and every now and then I'll go FOSS-zealot enough to go rip my Thinkpad back out of the closet and port everything over. Then, I'm no longer interoperable with any part of society that isn't involved in a fringe movement of the Linux laptop, and then go back, somewhat disappointingly, to my MacBook Pro.