No, I do think I had a conversation with cynical bear a while back that included a discussion of church hierarchy. I’m not going to spend a week looking for it, but generally those discussions eventually get to the book of Acts and the letters of Paul.
So far as islam goes, I consider it a political movement and not a religion. It is a political movement advocating a dictator (caliph) and a subjection of common people (sharia), and it rides an occult, syncretism of religions it created to confuse people it sought to conquer.
I don’t know how recent is this current Catholic comment on Islam in the Catholic Catechism, but I’m thinking they will rewrite that one. It really doesn’t comport with the historic view of the Catholicism that confronted and overcame Islamic armies and conquests.
Again, I am a Methodist and not a Roman Catholic, but I’d love to see past versions of that catechism and compare their wording of that passage on islam. I’m betting it came about in our era of ‘inclusiveness’.