Which Wireguard guide to follow?

[FyreWall]

I am trying to set up OPNSense to route all traffic through a vpn via Wireguard.

I created a peer and an instance via this guide https://docs.opnsense.org/manual/how-tos/wireguard-client-proton.html
After enabling Wireguard in step 5 if I look in OPNSense at VPN>Wireguard>Status, I see the instance says up under Status but no handshake while the peer does not say up but shows a handshake.

Not sure what to do next as the guide says to setup Selective routing which Im not sure thats what I need if Im routing all traffic through the vpn.

Thanks for any advice