Nice trick.For your first setup, use the phone. Then with the phone, use the "share" option in the BTH app and send the invitation to your Desktop PC (whatsapp, airdrop, email etc). In the Desktop PC you will need WireGuard application. you can import the shared Config file there
Correct, since maybe 7.12??? not sure when but there is no longer a need to do this on the client (for handshake) peer to re-establish connectivity with the Server ( for handshake ) peer.