Is there bare rock here? Looks kinda that way in aerials.

Unable to answer "Is there a waste basket at this stop?" – Östra Skolgatan (Bus Stop) – node/5910714514 via StreetComplete 61.1:

No sign of a stop here

Are these three islets really separate?

Unable to answer "What sport is played here?" – Sport Pitch – way/536290925 via StreetComplete 61.0:

It's a parking lot nowadays

What's this complex here?

What's this place? Looks weird in aerial imagery.

There should be a teahouse called "Teetao" somewhere in this building. I wonder where is it exactly? Has it replaced some of the POIs currently in the map?

Source: https://www.teetao.fi

Unable to answer "What’s the name of this street?" – Minor/Unclassified Road – way/1299933109 via StreetComplete 58.1:

There are two names pointing in that direction.

Attached photo(s):
https://westnordost.de/p/223044.jpg

Is the name of this island Kurkisaari or Hietasaari? The data is ambiguous.