Trying to get a Factorio server working [WSL2 Networking]

[lane-ftw]

I've been playing around with WSL2, and of course one of the first things to try is to get a Factorio server running.

Getting a VM up and the server running is easy, however I have not been able to figure out the networking. Server reports connection to pingpong and I can see that in wireshark, however I can't see the server on LAN/ the server browser.
I have been cheking for the LAN connection from a different computer than the VM host, as well as the VM host.

I have tried firewall rules for 34197 through the windows firewall, ufw is off in the VM (ubuntu 22.04), just for giggles I have also allowed 34197 through ufw, just in case ufw allow 34197/UDP
and have tried a portproxy

netsh interface portproxy add v4tov4 listenport=34197 listenaddress=127.0.0.1 connectport=34197 connectaddress=192.168.1.31

(connectaddress is windows/linux VM IP) with WSL in regular and mirrored networking mode (have also run portproxy with listenaddress=0.0.0.0)

As well as trying to let it through the HyperV firewall

Set-NetFirewallHyperVVMSetting -Name ‘{40E0AC32-46A5-438A-A0B2-2B479E8F2E90}’-DefaultInboundAction Allow
Set-NetFirewallHyperVVMSetting -Name ‘{40E0AC32-46A5-438A-A0B2-2B479E8F2E90}’ -DefaultOutboundAction Allow

Have also tried

ignoredports=34197
hostAddressloopback=true

in .wslconfig.
Next thing to try is bridging adapters, but as far as I've read I shouldn't have to do that, especially with mirrored networking.
Any thoughts? For what it's worth, I can connect to OpenFactorioServerManager on localhost:8080 from the windows machine.