Most points are in a relatively "small area in the USA this one 12498551285 is the outlier.

Oops, also add heritage to building.

Looks like node/12450713898 creates the large changeset area. Possibly added by mistake? It has no tags and sits somewhere in the middle of a field in Germany.

At node/4590493913 you have removed the emergency=defibrillator tag. Was this really the intention?
This invalidates al other tags on this node which are defibrillator related.

Not much Władysław could do here to decrease the box size. It is caused by the relation.
That said, I am pretty new to this stuf, but is this a good use of a relation? It appears to be used here to "group" a number of POIs about Goethe.

Volgens hier https://www.breda.nl/herinrichting-vlaszak-groener-gastvrijer-en-verkeersveiliger permanent.