I tried upgrading a Big Sur VM (VMWare Fusion) to MacOS Monterey B1. The install went black, hung up and died, leaving me with a bricked VM. Luckily, this was an experimental VM that I could restore from backup.
The host is a Late 2014 27" Retina 5K iMac. I just discovered that Monterey won't support my hardware, and I assume it won't support its client VM's either. I wish that the installer surveyed the hardware and blocked the installation to save me the headache and heartache.