Comment by SillyUsername

For a lot of use cases except hardware dev, a VM is sufficient.

Arguably you could (can already) run MacOS via VM on generic hardware, the same way retro systems are (which could be partly in hardware, e.g. FPGA performing functions). This would only be bad from a performance perspective, from a maintenance perspective it may make life a lot easier as you've moved a hardware compatibility problem into software.

You're no longer having to add compatibility workarounds for hundreds of pieces of hardware, just target one VM.

If you really needed the performance you'd then have 3 options that I see, pay for a real Mac, pay for a machine with x2 the performance of a real Mac (which limits you to mid range machines at the moment), or spin up extra VMs as required on hardware you have lying around that previously you couldn't use.