Hello,
I have two large disk Debian VM's in Vmware Workstation 15.1 running on Windows Server 2019. One VM has a virtual 2TB SCSI disk for the Bitcoin Core client and is about 520GB large. The other VM has a Dropbox copy on a 8TB virtual disk and is around 800 GB large now. Both virtual disks can be defragmented but not compacted. When I try to compact them, the VMware Workstation window crashes and disappears without an error message. I can compact smaller disks without any problem with good compression rates. I really need to compact there large drives, too.