From the article:

"The company, Zuckerberg said, has lately been involved in “the general idea of entertainment and learning about the world and discovering what’s going on.” This under-recognized shift away from interpersonal communication has been measured by the company itself. During the defense’s opening statement, Meta displayed a chart showing that the “percent of time spent viewing content posted by ‘friends’ ” has declined in the past two years, from twenty-two per cent to seventeen per cent on Facebook, and from eleven per cent to seven per cent on Instagram."

So they algorithmically force various other posts into your feed, and then observe that people are spending more time looking at that crap and less time actually connecting with real people and friends.

Colour me unsurprised.