Unable to answer "What’s the surface firmness of this track?" for https://osm.org/way/666352637 via StreetComplete 43.0:

It's not really a small street, more a path that is hard to find and full of bushes and undergrowth. We had a struggle to find it, at least in the upper parts. We were not able to find the crossing to the smaller foot path after crossing the small stream, but had to jump over two fences. Maybe someone local can verify and improve it here.