[j0057]

Strange then that the WSL2 guest gets a RFC1918 private address, because that would imply that the host is NATing traffic to and from the guest. However that does not happen through the ordinary Hyper-V NAT routing machinery -- at least Get-NetNat shows nothing in Powershell and in fact multiple people have reported broken WSL2 networking because they had leftover NAT rules from old Hyper-V VM's. It would help to have some conceptual documentation here about what WSL2 is doing.