It’s not an either or–but usually an and/both. Usually, an extraordinary judgment from a Council or the Pope are on points that were previously handed on with universal consent, but which for various reasons become obscured or questioned. And then, usually after such an extraordinary judgment clears things up, the ordinary way is eventually universally restored. Such extraordinary judgments are to declarations of anything new, but confirmations of what had previously been handed on. For example, the early Church believed in the divinity of Christ, this dogma became questioned, it was definitively reaffirmed in an extraordinary way at Nicea I, and after the strife died down it has been handed on always and everywhere in Church in various ways.
Generally, the entire deposit of faith is handed on by the universal, ordinary magisterium most of the time–that’s why it’s called ordinary.
2000 years on there are probably not a whole lot of truths handed on this way without any challenge or reason for an extraordinary declaration. Most of the 10 commandments have not had such an extraordinary judgment. I believe the perpetual virginity of Mary is another big one. I’m sure I’m missing some.