i am orthodox and personally i have never heard of this papal infallibility been used in the church or dogmata.

Devout Catholics tend to believe in the infallibility of the Pope.

Papal infallibility in Church teaching is similar to a "Circular Reference" in a spreadsheet.

The Doctrine of Papal Infallibility means the pope cannot error when issuing decrees or declarations on matters of faith and morals.

You may find the entire list of decrees from the First Vatican Council at the link below. The Council issued a Dogmatic Constitution on the Catholic Faith, which included God, the creator of all things, on revelation, on faith, on faith and reason. Finally, it addressed the permanence of the primacy of the Blessed Peter in the Roman pontiffs, the power and character of the primacy of the Roman Pontiff, the infallible teaching authority of the Roman Pontiff, and a full definition of Papal infallibility.