As title says it - However in 1.19.4, The port can now be changed directly in vanilla instead of having to use this mod for it instead.

Done!

Changing the port in Vanilla was added back in 1.19.3, when I also updated the mod's description to reflect what its additions over Vanilla are now (good thing I had the foresight to call it “Custom LAN” and not “Custom LAN Port” ;))!