I’m not sure what games do work, but I’m surprised over half of what they’ve tested are in a good state considering it’s running on an emulation layer with immature drivers. Additionally, anti-cheat can’t really be helped, that’s an issue we’ve been dealing with on Linux for ages as well. I don’t think anyone was really expecting it arm on windows to overtake x86 instantaneously, but from a technical standpoint it’s not a bad start. Of course, things could be better, but they could be much worse.
As a game dev in Japan, I can tell you nobody I’ve met has given any concern to pc ports, and it has been a royal pita to get anybody to care to the point of making me question staying in the industry.