Twitch being impacted is interesting. YouTube is foaming at the mouth to eat Twitch's lunch, and Twitch seems to be doing everything imaginable to make that easier for them.
On the other hand, YouTube seems to be doing virtually nothing to improve theor live streaming experience (UI) and increase their market share.
Probably realize they don't have to when Twitch is cutting creator profits and laying people off.
Tech is so full of arms races where both sides do nothing.
I remember in amateur sports, often keeping the ball in play was a winning move. It kept it going to have the opponent make a mistake. More, it wasn't about not making mistakes, as you did nothing but. You just didn't want to make the last mistake.