I have now been added to this problem... My company is pushing everyone with a Mac to upgrade to Big Sur and now my machine crashes every other time I connect or disconnect my CalDigit USB-C Pro dock. I have two ASUS displays connected with DisplayPort.
I downloaded the latest Hub Support driver from CalDigit but that didn't change anything.
202107301542 Dock Crash.txt
This is very frustrating especially with not having the ability to go back to Catallina.