"Permanently closed; announced a week ago on Instagram."
The place has gone or never existed. A user of Organic Maps application has reported that the POI was visible on the map (see snapshot date below), but was not found on the ground.
OSM snapshot date: 2026-03-10T00:09:11Z
POI name: Round & Square Punavuori Café and Bar
POI types: internet_access cuisine-bagel cuisine-breakfast amenity-cafe cuisine-coffee_shop cuisine-donut cuisine-vegan
 #organicmaps android 2026.03.11-12-Web