Comment by arjie

Another thing that you can do when you have the IP address range is just run a traditional split-tunnel. A simple way to do that is to run Wireguard on a cheap VPS, then have only traffic to those fixed IPs go to that tunnel. The nice thing about this is that tiny WiFi routers (e.g. hAP AX S) these days support Wireguard at pretty decent speeds. Then anyone on your network gets this, and if you want it while you roam you can just run the Wireguard VPN on your phone as well with the same rules.