Latest tested 2021.3.3 URP. Creates three.js compatibile JSON of your unity scene.
Sharing this under MIT license as I have no time for this project, and better tools exist. DO NOT USE IT, USE NEEDLE (I am not sponsored) https://engine.needle.tools/docs/getting-started.html
I make no apologies for the spaghetti-code you will find here. Hope this helps someone understand how to convert geometry and lightmaps from Unity to three.js space.
How to use: paste into your assets folder Window > Ex Machina Soft > Export Selection to three.js.
My discord: https://discord.gg/d5qCq7YRGt