Brume 2 as bridged router

I applied port forwarding to the brume. Just 51820 UDP right? Are the other features (adguard / goodcloud) required?

None of the other features are required if you only want to use the brume for incoming WireGuard VPN.

brume WAN port connected to my LAN switch
on google wifi settings, the brume is reserved to 192.168.86.11 and UDP 51820 forwarding to 192.168.86.11

This seems off. When I check the wireguard connections it shows the google wifi (gateway) IP rather than my cell phone?

I don’t get it. Why should it show the IP of your cell phone? What’s your goal?

I would advise you to create a new topic with all details (How to get support quickly) and maybe a network diagram.