What does HackerNews think of wsl-vpnkit?
Provides network connectivity to WSL 2 when blocked by VPN
It came from Docker Desktop for Windows, where they needed a solution for VPNs like GlobalProtect and AnyConnect that are often configured to drop packets for networks that aren't the main one associated with the VPN.
How it works: https://www.docker.com/blog/how-docker-desktop-networking-wo...
Edit: Reading a bit more, it seems like they are both trying to solve the same problem but in a different way. The mirrored mode seems use the same exact IP in the wsl/linux instance that's used in Windows. Somewhat like docker host networking.
https://github.com/sakai135/wsl-vpnkit
It's not a proxy, but would give some idea how to shim into the middle.
Uses gvisor-tap-vsock underneath: https://github.com/containers/gvisor-tap-vsock
Docker desktop pays for itself by solving these issues though IMO (I wasn't able to get a licence at the old role however)