PSA: Dymanic Queue is not New Champion Select
I've seen it many times on the boards and it's gotten pretty clear that people don't seem to understand the difference between these two things.
Dynamic Queue - refers SPECIFICALLY to the ability to queue with up to four other people for a Ranked game. This queue uses the New Champion Select.
New Champion Select - refers SPECIFICALLY to the new champion select experience. It's used for Ranked Draft queues and Normal Draft queues. In New Champion Select you pick two roles you might want to play and then queue up and get placed in a role much like how Team Builder used to work.