Apple is doing everything they can to kill gaming on Mac computers.

Kill support for 32-bit binaries.
Kill OpenGL support.
Block Vulkan support.
Do nothing to improve drivers.
Ad-hoc notarization being mandatory for ARM apps (which caused Ethan Lee and Ryan C. Gordon to stop doing new Mac ports).
Treat indie developers like shit in general.
Try to push Metal, but without having a market share that could justify bothering with it.
Rosetta 2 will die sooner or later, and without it Mac gamers can kiss years of games goodbye, especially those with lost source code, made with closed-source game engines or licensing issues.

Here are some blog entries by Lee about the Macintosh question:
https://icculus.org/finger/flibitijibibo?date=2019-10-01&time=05-49-26
https://icculus.org/finger/flibitijibibo?date=2021-01-01&time=11-53-38
Lee also shared his thoughts about Mac gaming in the aftermath of Epic Games v. Apple and the transition from Intel 64 to ARM64 (pic related).
https://github.com/FNA-XNA/FNA/issues/318#issuecomment-841456860