I don't agree with every word of the original post, Tiktok's enshittification by Cory Doctorow.
This process, however, does seem inevitable when a company tries to serve both advertisers and end users simultaneously.
I tend to think that platform revolts (i.e. Twitter, Reddit) are overblown in the short-term (what suitable replacement will those users migrate to?) though do point to changes coming in the long-term.