Unable to answer "What surface does this piece of road have?" for https://osm.org/way/38121365 via StreetComplete 51.0:

Links und rechts Fahrspuren aus Betonplatten, in der Mitte Asphalt. Jedenfalls am Anfang des Weges.

Attached photo(s):
https://westnordost.de/p/140764.jpg