People have been saying that Mac gaming is around the corner for years now. GPU upgrades are the least exiting part of new iPhones. I have zero faith that they move the gaming needle, especially on iPhones.
The most exciting thing for Mac gaming is probably the Game porting toolkit.
I'm not sure they have. When Macs came with Intel processors, everyone who wanted to play games on their Mac just booted into Windows for gaming, so there wasn't much pressure to make them work on the MacOS side. Because Bootcamp no longer works, Apple is under increased pressure to improve game performance.
The most exciting thing for Mac gaming is probably the Game porting toolkit.