Unable to answer "How wide is the bicycle path here?" – Schulweg CGEG (Cycle & Foot Crossing) – https://osm.org/way/1349701916 via StreetComplete 62.2:

Gemeinsamer Rad und Fußweg, Breite entlang des Weges unterschiedlich

Attached photo(s):
https://streetcomplete.app/p/328028.jpg