Oh it is ALL os-es you want in ONE screen, since it is one VM that grabs the screen output of anytime else you install.

Most days I run a disposable VM for random stuff that I don’t want to be stored & then several others like one Windows VM for a Twatter account that I built up, others for Fb and other pieces of the digital gulags.

Then also isolated VMs for crypto, getting network access via Whonix & Tor. Things like that are dead easy, especially since you can choose what os to use easily.

As for real threats I’m not worried, got nothing to really hide BUT what I really enjoy is to turning the tables on the worst of SoMe giants!

Others will have other challenges, and if those are really serious then getting the BIOS onto Coreboot or similar is of course important…

It has to be experienced really, I have used virtualization since the beta release of VMWare, nothing else comes close in practical terms :-)