Unable to answer "What’s the surface firmness of this track?" – Track / Land-Access Road – https://osm.org/way/396957398 via StreetComplete 62.0:

Kein richtiger Weg

Attached photo(s):
https://streetcomplete.app/p/317602.jpg
https://streetcomplete.app/p/317603.jpg
https://streetcomplete.app/p/317604.jpg