Gamers don't need to worry about "how games are supported" as along as they work. You can run many old games in Wine even though original developers stopped supporting them decades ago. Putting hurdles in the way of that is the opposite of supporting though and that's where Apple is causing a problem. This applies to refusal to support Vulkan as well as stuff like gutting 32-bit and OpenGL.
Sometimes it works, but the performance is worse. Like back when I had an Intel Mac, csgo was fine on Boot Camp but had noticeable input lag in macOS, and iirc under Wine it had less input lag but stuttered more. It'd be unplayable if I cared about winning, but I didn't care.
