hackthemap
The way https://www.openstreetmap.org/way/93663580 crossing a building without tags indicating how these relate to each other.
What is the situation here?
What kind of tunnel is it?
List of tunnels: https://wiki.openstreetmap.org/wiki/Key:tunnel
Maybe a https://wiki.openstreetmap.org/wiki/Tag:tunnel%3Dbuilding_passage ?