Unable to answer "Are these opening hours still correct?" – Elsenbusch Kiezbauernmarkt (Supermarket) – https://osm.org/node/3634281847 via StreetComplete 58.0:

I can't seem to find this place. There's nothing obviously looking like a supermarket. The Endorphina restaurant is the only obvious business here.

Attached photo(s):
https://westnordost.de/p/216577.jpg
https://westnordost.de/p/216578.jpg