Earlier quoted context omitted.
What Apple should do is drive a truckload of money on Valve's doorstep and get a Proton-like system built for M-series Macs.
They have done that. They gave some cash money to CodeWeavers, the company that created wine. It's called the Game Porting Toolkit: https://developer.apple.com/games/game-porting-toolkit/
As I understand things, proton allows windows games to just work (pun intended) on Linux. No porting, no rebuild - just download and run.
Who is going to bother doing all the extra work to port their game for Mac?! Time and time again there have been loads of articles on here over the years with developers saying it is simply not worth the hassle to support Linux and Mac.