How to Setup a LAN Games Proxy on Windows
Download the Phantom Proxy Server & extract the Phantom folder to your Desktop.
Within the Phantom folder, double click the Windows Start.bat.
Click Allow access on the Windows Defender Firewall Alert to broadcast the server from your machine.
This must always be running when you want to play on the server.
Launch Minecraft & navigate to the Friends tab.
You should see the server under LAN Games as shown in the following image:
Select it and join the server!
For more information regarding Phantom, check out their GitHub