can someone please help me to set up ProtonVPN Wireguard just for the guest network I am having hard time. I can only set it up for both networks but when I set up VPN just for guest network in firewall settings my LAN home network cannot get access to the internet.
This might be of help to you.
Essentially, you can use a routing table to pipe Guest traffic to and from a ProtonVPN interface. I use VLANs, but that isn’t a requirement.