Unable to answer "What are the opening hours here?" – DHL (Post Office) – node/773276301 via StreetComplete 61.1:

Nur noch nen Briefkasten

"Lake filled up, community building on top"
The place has gone or never existed. A CoMaps user reported that the POI was visible on the map (see snapshot date below), but was not found on the ground.
OSM snapshot date: 2025-08-22T03:20:49Z
POI has no name
POI types: natural-water
#CoMaps android