I used this guide and finally got it working https://github.com/rajannpatel/Pi-Hole-PiVPN-on-Google-Compute-Engine-Free-Tier-with-Full-Tunnel-and-Split-Tunnel-

I used this guide and finally got it working https://github.com/rajannpatel/Pi-Hole-PiVPN-on-Google-Compute-Engine-Free-Tier-with-Full-Tunnel-and-Split-Tunnel-OpenVPN-Configs https://github.com/rajannpatel/Pi-Hole-PiVPN-on-Google-Compu...