hmm… I’m using Ubuntu 22.04 server and v1.3.3484.2 of the Pritunl Client.
I did the following and it seems to work. The client auto-starts after a reboot and connects automatically.
pritunl-client enable profile_id
pritunl-client start profile_id -p password
I did not have to install wireguard-tools.
My only problem now is trying to figure out a way to disable the default route, which is mentioned in this post.