Unable to answer "What’s the name of this street?" for https://osm.org/way/79384350 via StreetComplete 51.0:

It is a private road

Unable to answer "What surface does this piece of road have?" for https://osm.org/way/1150368529 via StreetComplete 51.0:

This part contains some staircases and is otherwise paved with asphalt, and cars definitely are not able to go there

Unable to answer "What surface does this path have here?" for https://osm.org/way/421806761 via StreetComplete 38.2:

This street does not seem to exist