Don't agree because even Bishop Athanasius Schneider apparently admit popes differ on it and will do post on it at some
https://www.catholicculture.org/culture/library/view.cfm?recnum=12325 On the Question of the True Pope by Bishop Athanasius Schneider, ORC DESCRIPTION Bishop Athanasius Schneider comments on some key questions that have been vexing many faithful Catholics in the midst of the current crisis in the Church. PUBLISHER & DATE LifeSiteNews, February 28, 2020 On the question of the true pope in the light of the opinion of the automatic loss of the papal office for heresy and the speculations about the resignation of Benedict XVI The hypothesis of the possibility of a heretical pope derives from the Decree of Gratian (dist. XL, cap. 6, col. 146) from the 12th century. According to the opinion expressed in this decree, the pope cannot be judged by any human authority, except if he has fallen into heresy ( a nemine est iudicandus, nisi deprehendatur a fide devius ). Basing themselves on this spurious decree erroneously attributed to St. Boniface (+754) and accepted by Gratian, the