ProtonVPN Wireguard only for guest network

Hi,

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.

Thank you very much for help

https://forum.openwrt.org/t/protonvpn-for-vlan/219049

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.

Research Policy Based Routing (PBR)

Installing the full PBR app might be the easiest solution:

Use the name of the guest device preceded with @ e.g. @br-guest as local source

For just one interface (device) it might be overkill and you can do it manually:
OpenWRT Policy Based Routing (PBR)

For the record , how to setup a WireGuard client:
WireGuard Client Setup Guide