Unable to answer "What kind of artwork is this?" – Artwork – https://osm.org/node/13633850962 via StreetComplete_ee 63.0:

It's a rock carving of a instant message conversation displaying a message "VAD GÖR DU?" followed by an empty one (or possibly 3 dots indicating someone is writing a message). It also depicts to hand impressions.

Attached photo(s):
https://streetcomplete.app/p/331395.jpg