Recently upgraded my host to Windows 2004 and after doing this. I have been experiencing Windows Workstation locking up/freezing on multiple VM's. I have checked for updated drivers, etc. But nothing has fixed it. I ended up reverting back to Windows 10 1909 and the problems have gone away.
I am running:
Dell Precision 7530
Intel I9-8950 HK
64GB RAM
Windows 10 1909 64 Bit
Intel 630 UHD/NVIDIA P3200 Quadro Graphics Card
NVME Hard Drive