The x86_64 port of OpenVMS won't even boot if the VM doesn't have XSAVE, while other guest OS's I've tested are sluggish at best. There's a little green turtle icon in the VirtualBox status bar if it's running on Hyper-V instead of natively (a little counterintuitive since green usually means "go").
I also got Ubuntu installed on the laptop as a dual boot after turning off BitLocker (the installer wasn't happy with just disabling it, but at least now I can see my NTFS partition from Linux).