It does indeed look like the social media landscape is fracturing into separate tribes. Whether this is good, who knows.
One quote from the article is this: “X for the rightwing and the raging; centrists and policy nerds on Bluesky; people who hate politics on Threads or Instagram; Gen Z on TikTok; boomers on Facebook”.
I see Lemmy and other fediverse platforms as pioneers for desentralized web which is still in its early stages. There are still problems to be solved and likely bunch of things that should be streamlined before bringing in the masses but there’s a lot of potential in desentralization even beyond social media.