The Catacombs Forum, which is closely allied with Fr. David Hewko, seems to have officially taken on Opinion No. 3 of the Five Opinions expounded upon by St. Robert Bellarmine regarding the pope and heresy:
That a pope who is even a manifest heretic is not deposed ipso facto and cannot be deposed by the Church.
The reason why I write that it seems to have officially taken on Opinion No. 3 is because the forum administrator, who goes by the name of “Stone”, posted (see picture of post here) a sermon of Fr. David Hewko given on September 19, 2023, in which Father spoke about and agreed with a letter written by His Excellency Bishop Athanasius Schneider (refer to this post). In that letter, Bishop Schneider defends the “pontificate” of Jorge Bergoglio by holding to the position that a heretical pope does not lose his office automatically and cannot be deposed by the Church (which is essentially Opinion No. 3). The forum administrator posted this without making any other comment. Therefore, it is fair to presume that Opinion No. 3 is also the opinion of the Catacombs Forum. If I am incorrect, I welcome a clarification.
Unfortunately, the Catacombs Forum, together with Fr. Hewko and Bishop Schneider, oppose the Magisterium of Pope Pius XII by indirectly denying that the public sin of manifest formal heresy by its very nature separates the heretic from the Church. See this post and this post in defence of my assertion.
Do you see how error spreads from the clergy to the faithful and from the faithful to each other?