One solution would be to convert landscape and foliage into a static mesh and then export them, however I want to export GLTF at runtime.
I believe there is no easy way to do the conversion in runtime as other formats simply cannot export at runtime.
Is there a way to fix gltf export or maybe an option that I am missing?
Even from editor if you try exporting landscape and foliage, all foliage stays at world origin, and landscape just has points for the landscape grid.