Unable to answer "What are the opening hours here?" – Waldbad Sögel (Recreation Ground) – way/55949916 via StreetComplete 61.0:

Construction work is being done.

"store was closed for years, now it's empty "
The place has gone or never existed. A user of Organic Maps application has reported that the POI was visible on the map (see snapshot date below), but was not found on the ground.
OSM snapshot date: 2025-04-18T15:38:17Z
POI name: Transvelo
POI types: shop-bicycle
#organicmaps android