Unable to answer "Who is allowed to park here? Parking may be free or paid." – Siemens Heathineers (Motorcycle Parking) – https://osm.org/node/5851383789 via StreetComplete 63.0:

Kein Motorradparkplatz, sondern Eingang zu "eBike station" für Fahrräder

Attached photo(s):
https://streetcomplete.app/p/333145.jpg