On paper qemu should be able to do this. The hard part is hardware acceleration for the GPU. Without Apple putting effort into supporting this with e.g. documentation, that's a bit hard. That's also holding back linux support on Apple hardware. But it's a fixable problem that will only get easier as hw gets better and faster over time.
At what resolution. You're not going to software render 4K120FPS even with 2000s graphics. But you also don't need a software implementation since translating to a host API isn't really any harder than that (and often much easier). And this already exists in Wine.
