Nope. That's the weird thing. It's definitely the proper package and the expected version of it. I can also see

virt-what

in

/opt/puppetlabs/puppet/bin

but if I run facter with debug enabled, it's showing a message, that

virt-what

isn't available ("No such file or directory"). That's on Ubuntu Jammy for me. Maybe something's wrong with the

PATH

I'll continue debugging this. Thanks for the hint!