A new hotel has been opened on this location. Also a part of the garden has been added to Oosterpark.
https://www.pillowshotels.com/amsterdam-mauritskade/nl/

Restaurant The Beef Chief is gesloten. Op C. van Eesterenlaan 35 is m.i.v. december 2024 restaurant Esra gevestigd: https://www.esra.amsterdam/

Unable to answer "What’s the surface here?" – on bridge: Foot Path – osm.org/way/38365145 via StreetComplete 60.1:

This bridge has been removed

"Closed"
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: 2025-02-27T10:33:49Z
POI name: De Pindakaaswinkel
POI types: shop
#organicmaps android