[p_ing]

APIs are the last reason there aren't 'major' games on macOS. You've got architecture changes; PPC to Intel was a big loss of game compatibility, and then again when x86-32 support was removed from OS X nuked most of a user's Steam library.

And there's the chicken/egg problem of gamers just not being present in large enough numbers on macOS. The platform already has a fairly small marketshare in the overall PC space, the number of gamers are vanishingly much smaller; Steam stats put macOS at 1.58%, less than Linux.

https://store.steampowered.com/hwsurvey

All of the major game engines support Apple's Metal, so API compat from that perspective isn't an issue.

[bigyabai]

APIs are the exact reason. Why can't you run Proton on MacOS? WoW64 works. Rosetta and Wine work. Is there any technical limitation besides API support preventing the Macbook from working like a Steam Deck?

[p_ing]

Proton relies on Linux sys APIs not available on macOS, but the Porting Toolkit is available. I've been able to "play" Noita on my M2 Air (granted the perf sucks, but that's what I get for owning an Air). This discussion hasn't been centered around kernel APIs, but rather graphics APIs (D3D/Vulkan), if you're going for that "gotcha!".

Crossover is another option, though I have no need to pay for it as I own a Windows PC/consoles.

https://www.reddit.com/r/linux_gaming/comments/gt3fat/proton...