Unable to answer "This shop has been vacant. What’s here now?" – on level 0 – node/1713911596 via StreetComplete 60.3:

The space of this shop was integrated into the Restaurant Kreuz. The space was already part of the same building.

Unable to answer "Does this crossing have an island?" – Crossing – node/9385536140 via StreetComplete 60.3:

There is no crossing here at all

Attached photo(s):
https://streetcomplete.app/p/268908.jpg

Unable to answer "What kind of parking is this?" – Parking Lot – way/1349280534 via StreetComplete 60.3:

Seems.to be a handicaped parling lot