Regular VMs aren’t emulation. They use various hardware and software features to isolate themselves from the host OS, allowing them to run a completely different guest OS, but they’re not emulating the OS, they’re actually running the code on your CPU as-is. The only time that involves emulation is if you want to run a VM for a different CPU architecture than the host. Then you need a CPU emulator.
yes…zsnes, a ps2 emulator that I don’t remember the name of (pcsx2?), dosbox…that and virtualizing other OS’s
Regular VMs aren’t emulation. They use various hardware and software features to isolate themselves from the host OS, allowing them to run a completely different guest OS, but they’re not emulating the OS, they’re actually running the code on your CPU as-is. The only time that involves emulation is if you want to run a VM for a different CPU architecture than the host. Then you need a CPU emulator.