[GekkePrutser]

If I read it correctly that wouldn't be tunnels in tunnels. It would be 2 separate tunnels side by side. Which is not necessarily a bad thing.

WSL2 is basically a VM and any VM which binds directly to the Adapter (e.g. not NAT mode) will have the same behaviour. In some cases you'd even want it to do this.

[jeroenhd]

If I read the article correctly, the traffic only leaks when the VPN disconnects or reconnects. This means the default situation would be a tunnel inside a tunnel.

WSL2's NAT is close to a standard Hyper-V NAT adapter but there's unexpected differences (like the localhost binding) that make it stand out.