The issue you cite and the issue you're experiencing I think are two separate things.
The issue cited is experienced only "after a virtual machine has been running for a period of several hours or more" and was resolved in macOS 10.15.6 supplemental update: https://support.apple.com/kb/DL2049?locale=en_US
"- Fixes a stability issue that could occur when running virtualization apps"
The crux of your issue, without any other context, is:
MONITOR PANIC: vcpu-0:IOAPIC: regSelect=0x8
Why it's getting there is the question.
Can you share info about your hardware?
Mac Model?
What you're doing when this error happens?
a full vmware.log from when it crashes would also be helpful.