Unable to answer "What’s the surface here?" for https://osm.org/way/1050387928 via StreetComplete 50.0:

İt is covered soft matrial like playground

Attached photo(s):
https://westnordost.de/p/124571.jpg
https://westnordost.de/p/124572.jpg
https://westnordost.de/p/124573.jpg