One only has to read Acts to see Peter exercise the keys three times along with other apostles. Pentecost, Samaria and Cornelius.
On another note, if the current Pope has binding and loosing authority why doesn’t he use it? Why is Pelosi and Biden still getting communion when they defy church doctrine?
My argument is that the Church indeed does have authority.
It is NOT my argument that such authority is always used wisely.