I would like to remove the direct path from this point to the entrance of the zoo. It is very steep and shows no visible sign of actually being a path.

Check access tags

there is something missing here, connecting Triftstraße and Am Brink

use proper tags (public_transport=platform etc.) rather than footways

finish mapping the footway or connect it to the road if it ends there

missing 'Grillhäschen'

paths seem to be inaccurate

Stairs do not cross footway