ullli
Unable to answer "Is Donnerbalken (Toilets) still here?" for https://osm.org/node/538199693 via StreetComplete 33.1:

no Toilett called Donnerbalken here at this position,
there is a toilet house at 154 at the corner

Attached photo(s):
https://westnordost.de/p/52845.jpg
https://westnordost.de/p/52846.jpg