As someone pointed out in the other comment, it's not that it doesn't exist, but my impression is, it's more conservative. Still, Germany is a large country, so what is true in one part, does not have to be true in another. E.g. Munich is West as much as idk Hamburg, but I doubt the culture is very similar.

There was a movie on TV some time ago with this as a theme https://en.m.wikipedia.org/wiki/Barfu%C3%9F_bis_zum_Hals .

A lot of nudist camps were active in communist Yugoslavia, called FKK (Freikörperkultur), created and visited mostly by West Germans. So I guess there was not much difference between East and West Germany. For some reason, Germans in general are prone to nudism.