We’re splitting hairs here. I merely was trying to give OP some background on how to gather these details for themselves whilst trying to give a simplified explanation. As I mentioned, there is no guarantee that Twitch does it exactly the way outlined in the spec.
Nonetheless I’ve updated my language in the previous post to be more accurate. If Twitch doesn’t do the second thing today they could still introduce it at a moment’s notice and your implementation should not depend on that behavior.