ProtonVPN over Whonix

I need a simple guide to install protonvpn over whonix ?

protonvpn >>>>> whonix >>>>tor browser

I don’t want any other vpn service

Also, I have read Qubes have free vpn so, how I can use this “simply”

Finally, could I run protonvpn over work template?.

protonvpn >>> firefox

Search the forum. This has been discussed a lot recently. As for ProtonVPN specifically you’ll have to look at your VPN provider & see if it works with the solutions people have offered elsewhere.