Unable to answer "Do you have to pay to park here?" – Parking Lot – https://osm.org/way/307444467 via StreetComplete 63.0:

Firmengelände Hegenscheidt, kein öffentlicher Parkplatzlp

Attached photo(s):
https://streetcomplete.app/p/336672.jpg
https://streetcomplete.app/p/336673.jpg