Unable to answer "How wide is the bicycle path here?" for https://osm.org/way/439656073 via StreetComplete 52.1:

This is not a real bike path, just a few meters of lowered curb where bicyclists can switch from the multi-use sidewalk to the road. There is a marked bike lane starting in the road some 50m further toward B14.

Attached photo(s):
https://westnordost.de/p/149101.jpg