Thank you for the quick reply.

As a solution it seems rather complicated,
I was wondering if there were any alternatives with a gui and without necessarily having to use the terminal.

I also ask a probably silly question: Could the Windows version of Mullvad work using wine?

hi, I'm a newby in BSD/Linux, but I tried GhostBSD in live and I really liked it.
I would need to use a vpn and I would like to know if by installing GhostBSD I can install Mullvad VPN for which I already pay a subscription.
In case it is not possible I would like to know the other possibilities.