Unable to answer "Where is this fire hydrant located?" – AmperVerband (Underground Fire Hydrant) – https://osm.org/node/3987078087 via StreetComplete 62.0:

Schild is da, Hydrant von Schotter verdeckt?

Attached photo(s):
https://streetcomplete.app/p/319316.jpg
https://streetcomplete.app/p/319317.jpg