I doubt the hardcore crowd is interested in Macs in general
No, the current Wintel hardcore gaming crowd is pretty much fixated on Wintel gaming issues - bigger and better GPUs, higher PCIe speeds, and bigger and beefier cooling rigs.
Of little concern to them, lots of Win users are switching due to Apple Silicon's price/performance/efficiency advantages - not to mention that AS Macs are far snappier than their Wintel competitors due to their single core speed advantage.
Win users are switching for a well built, fast, and efficient computer systems - but once here, they may implore game developers to bring gaming here as well.
There are a fair number of Mac gamers here as well, but a lot of them have been disguised as Windows users since they run Win exclusive games under boot camp. Hardware-wise, Intel Macs suffer from the same graphical subsystem bottlenecks as their Wintel counterparts - because Intel Macs
are Wintel machines - just running macOS.
A lot of those bottlenecks go away with Apple Silicon - and with Apple Silicon's higher single core speed and greatly expanded GPU capability with M1x - and now eight high performance cores to make up for the core count beat-down M1's been suffering from - I expect Metal code to be quite compatible speed-wise with DirectX through even more powerful (but workflow bottlenecked) discrete GPUs.
A lot of game frameworks are already 95+% here due to iPhone and iPad ports - I don't think it would take that much more work to bring them all the way over to macOS with full capability.
The only question is: will AAA developers figure all this out, and try dipping their toes in Apple Silicon macOS?