Ok, now I understand your problem.
The scenario I imagined:
You were making a playlist by yourself and were looking for artists who turned out to be not available on Spotify (but are staples for the genre of Krautrock)
The scenario actually was:
Spotify can generate playlists for a particular genre which you did and you were upset about the playlist that got created not containing any of the artists you mentioned in the OP.
Outrageous. Zoomer and their problems.
Any chance you are the same Bernd (>>/int/257472) that regularly makes threads about non-issues?