I want to say I've been experiencing the exact same issue -- also just within the last couple of days. In my Win10Pro guest OS, I didn't have Virtual Machine Platform or WSL turned on, but I did have the Hyper-V and Containers features enabled. Was getting the same "CRITICAL PROCESS DIED" BSOD at seemingly random intervals after reboot. I turned off the Hyper-V feature only, and have been running fine for a few hours since then.
Around the same time as the BSODs started happening, the main software I use on Windows (SQL Server Management Studio) started crashing randomly. I did have some updates for it that were installed around the same time, though, so it's hard to say if the issue is related to the BSOD or not. Both issues started showing up after installing the latest VMware Tools Guest Additions package (11.2.6, build-17901274).
Good to know this was happening for you on a fresh install -- saves me the trouble!
A couple more notes: I'm also on Big Sur on Intel, but only macOS 11.2.3. I am on Fusion Player 12.1.2. I would guess that the latest fusion point release is the culprit. If you can get ahold of a 12.1.1 installer, it might be worth a try...
