Yeah I really never got why people were mentioning it. It seems like Elon Musk is just good at hype, because it never had much exposure to me at all even when he bought it and I am very online and advertiser friendly.
I used to be active in a corner of the science Twitter, but it started dying long before the takeover. Algorithmic recommendations killed it. When a platform starts prioritizing recommendations over explicit user choices, it also prioritizes influencers over people with something interesting to say.