Lol with 2 VMs per VM you can do an infinite VM linked list where each macOS hosts a "guest" and a "next host". I'm too lazy to test this out. Any takers?
I think it's a little funny that my response is "no I'm not wasting my weekly tokens on that, it's not a good enough bit"
IIRC, that's only for Linux guests that can nest. macOS can only one level deep. That is: you can't have a macOS guest (running on the Apple hardware host) make its own macOS guest.