Ladybird has quite a few corporate sponsors now and is progressing quite well. I built and tested the latest sources over the winter break and it sort of works already. I posted on HN from it.
It is unfortunate it doesn't even run on SerenityOS anymore.
This does at least partially eliminate the appeal. e.g. SerenityOS has its own decoders for PNG, JPEG and other image formats and they are not bad, but the boring libpng, etc. were adopted instead.
It should be a net positive if not everybody uses the same implementations of everything.