Do you not know what a port is? Are you not aware that numerous modern game engines don’t even need to be ported, they just run on multiple platforms?
Macs being ARM based has FUCKING NOTHING TO DO with there being few games for the platform.
Apple has never courted game developers. They have never been about absolute gaming power. They’re about developers, media production, and general use audiences. They do not build gaming computers. Any gaming capability is ancillary to their actual business model.
If a developer doesn’t see a potential ROI on porting a game to Apple silicon, they won’t. It’s that simple.