Help with ZeroTier routing between GL.iNet devices

I have two devices. I have a Brume 2 plugged into a LAN port on my home router. I have enabled ZeroTier on this device, and WAN port sharing (plugged into router via local WAN). Within the ZeroTier portal, I have a managed route of 0.0.0.0/0 via 10.147.20.167 (Brume 2 device). On my cell phone, I have the ZeroTier app, and when I enable “route all traffic through ZeroTier.”, I successfully show my home IP address on my cell phone. I also have a Beryl AX router for travel purposes, and have connected it to the ZeroTier network. However, for the life of me, I can’t accomplish the “route all traffic through ZeroTier” in similar fashion. I am not really a networking guy, and I can’t for the life of me figure out how to route this traffic successfully. I know I need to get some static routes configured in advanced config, but despite ChatGPT and some tinkering, I am failing to get this to work. Any suggestions/recommendations?