Buy yourself a (much less expensive) gaming PC with a Nvidia graphics card. Get A+ games on that PC. Install the free
Moonlight app on your AppleTV and stream the games running on PC through AppleTV to your TV screen. It "just works" very well... and there's no waiting for Apple to get around to something. Buy today, play A+ games tonight!
Else, with Apple & gaming, be prepared to wait for up to forever. Apple runs a "build it and they will come" model. PC & Playstation and Xbox run a "we'll pay you lots of money and/or buy your gaming studios"- even front you lots of money- to build A+ games for us. One gets game programmers paid now and paid well going forward. The other demands the game programmer gamble & hope that a big payday will come in the future. It's easy to recognize which way many choose.
IMO: Apple- if serious about gaming
THIS time- needs to allocate money & focus to gaming like they have with AppleTV+ original content development. They throw a LOT of money & talent at that and it gets them focus on creating that content that is then owned by Apple... exclusives to Apple and only Apple. They could do the same with games, buying game studios like the competitors do and then having exclusives for Silicon. As much as it can sound like Apple is serious about gaming, it doesn't seem to ever go THERE. Silicon might be terrific hardware with lots of gaming potential but money talks. If superior hardware for gaming is all it took, we'd likely still be using Amigas in 2024.