one of the whonix-qubes advantages is:-
u can easily connect any appVM OS to sys-Whonix/Whonix Gateway.
just choose any VM u like to torify it connections, and then right click on the VM and then choose “VM settings” then u gonna c “NetVM” change it to " sys-Whonix" or “…etc” (whatever u have named the whonix GW) then press “OK”. >>> congratulation!
Note:- this method is NOT secure. just for fun :D. like for example torifying windows OS 8). still not secure DONT trust Microsoft. like i said just have fun.