I was reading manpage of qvm-prefs and under vcpu option, it reads: “Number of CPU cores available to VM. Some VM types (eg DispVM) will not work properly with more than one CPU.[…]”
Then, I checked a running dispVM of mine, which is based on whonix-ws-16-dvm and is running Tor Browser. I see it has 2 vCPUs assigned to itself, by default.
So, is this observation conflicting with what is written in qvm-prefs man page?