A logical extension of your post really makes you think just how much of social media post-2007 was set up on fundamentally unsustainable business models. Engagement is not a good business model! Making investors pay for users was always a bad choice and sooner or later, investors were going to ask for their money back!
It will be interesting to see how social media changes post-2023. With Meta almost vestigial (except Instagram and marketplace), Twitter and Twitch absolutely clowning away their positions, what's next? Jeff Bezos and/or Daddy Sundar reinvesting in social media?
I highly recommend watching Louis Rossmann's video on Reddit - https://www.youtube.com/watch?v=JqL-G3GFqRU&t=728s