I'm also searching around this topic.
I tried to remove experimental virtual TPM device in Fusion 13, but the device was re-added automatically and Windows 11 PIN code was simply lossed.
In experimental method I think I can't move the virtual machine to another Mac nor can't remove storage device. New Fast encryption method uses password like older slow method, so it should be much better.
I hope I don't need to reinstall this VM.