Has anyone ever successfully written a custom GPU driver for macOS? Perhaps there would be more incentive to do so now, but... seems like a pretty massive undertaking.
You could of course use the software renderer—I'd guess that probably still exists on Apple Silicon Macs for safe mode and such—but it wouldn't be pleasant...
Edit: Well, anyone besides nVidia, I suppose. But they're a big company, not a Hackintosh side project.