One issue I encountered is that VMWare Fusion won't launch my virtual machines.To run VMware Fusion on Big Sur you may need the next version, which is currently.
There are virtually no driver updates (only 1 update specific to Mac Pro with nothing about DirectX support) and unlike the PC version the Mac version of this card has no support for DirectX. Let’s optimize macOS settings to make working with the virtual machine more comfortable. Your About this Mac will look something like this. Now shut down the Mac and resize the disk in VMware. 13 or later Operating system installation media (disk or disk image) for virtual machines. Will not work on unsupported CPUs like Xeon Westmere, which generally can be made to support Big Sur.
