Me and a friend were talking about this before - for big news stories I/we would instinctively put rolling news on. Now it's usually Twitter I check.
This is compounded by the fact that so many political events 'happen' on Twitter/X (and for Trump, Truth Social then screenshotted onto Twitter). Even without Trump I would say the majority of UK political 'intrigue' is done directly on twitter.
So I think it's actually the other way round; media outlets use it quite a bit because instead of press conferences and what not a lot of news comes straight onto it.
Btw, this isn't too say traditional journalism doesn't have a place - it absolutely does and most of the current affairs content I read is on that. But for 'fast moving' events Twitter has managed to keep its place in my eyes, which I'm surprised about to be honest. Bluesky does not have anywhere near the same momentum which really shows you how important network effects are.