Unable to answer "What height limit is indicated here?" – Parking Garage Entrance / Exit – https://osm.org/node/1104677046 via StreetComplete 58.0:

Korkeusrajoitusta ei ole merkitty kyltillä, mutta StreetMeasurella mitattuna se on 2,5 metriä

Attached photo(s):
https://westnordost.de/p/218853.jpg