The issue still persists for me. Same observations as for Reporter. Worked perfectly until both computers were updated with Win10 Update 2022H2. Issue remains the same with all the latest Windows KB updates installed.
Both computers can join a game, if the game is hosted on an iPad. But of any of the two computers host, neither the other computer, nor the iPad can see the LAN game.
It's been resolved for me after updating to version 1.19.60.