Yay 3d lighting!!! the baked is super helpful for level design. I tested it and my levels look way better. Creating bake lights for every face of a building or structure in blender is annoying so this make me so happy.
I am glad the baking helps! In webGPU, with baked lights, the perf cost is pretty low, but in webGL it is higher, hopefully webGPU becomes more widely available soon.
Can you show any screenshots? It would be great to see it in action.