Hopefully Lumen works for foliage. All UE5 demos intentionally avoid foliage, but in the real world, the majority of games have dense foliage nowadays. Trees, grass, you name it.
SVOGI did it perfectly, you can see how beautiful forests look in Kingdom come: deliverance and it was extremely fast. Hopefully lumen isn’t worse than something almost a decade old.
If lumen doesn’t work with foliage, it’ll be a major limitation.