Presuming those other 2025-era ARM CPUs have standardized virtualization extensions, macOS would probably be best run through a hardware-accelerated hybrid emulator that interprets, rather than executes, the non-supported instructions. (Think Linux-aarch64 running qemu-kvm.)
“Hackintoshing” in the sense of needing to write macOS drivers for Apple-unsupported hardware/peripherals would still exist in that world, as people would want to pass hardware (like the GPU!) through to the VM for performance. Though the construction of these drivers might be easier than today, as for peripherals that are just too hard to get macOS itself to support, hardware-abstracted peripheral drivers could be written instead (or even reused from VM software like VMWare Fusion!)
