Well a few things come to mind, the sale of indulgences, the doctrine of Papal infallibility and the assertion of the primacy of the Bishop of Rome over the other Bishops such as the Bishop of Constantinople (The Patriarch), the Bishop of Antioch etc.
“Well a few things come to mind,”
I doubt there’s much “mind” involved in what was posted:
“the sale of indulgences,”
Never approved of by the Church.
“the doctrine of Papal infallibility”
Which you can’t probably correctly identify or explain.
“and the assertion of the primacy of the Bishop of Rome over the other Bishops such as the Bishop of Constantinople (The Patriarch), the Bishop of Antioch etc.”
Except for the fact that that was the way it was - as demonstrated by the eastern Churches.