You're missing the point, it can be any rock from any terrain. Another one for you.FH4 doesn’t have any deserts which you’re showing of. PG put there polygons in a lot of things not only rocks. City’s, every leaf on the ground, water, etc. Take the ocean for example, there’s significantly more mesh density in FH4 ocean than in hzd water
FH's rocks simply don't have the depth, geometry density, variety and shader complexity to match the real ones, HZD's rocks are actually much closer to the pic.
You just don't find something like this in Forza.
The ones in Forza look like this flat, photoshopped 2d maps slapped on a low poly hillside.
Quite ugly if you ask me.