"Google Is Tightening Its Grip on Your Website" by Owen Williams https://onezero.medium.com/google-is-tightening-its-iron-grip-on-your-website-27e06b3150e0
"AMP adoption is also the only way to gain access to Google’s Discover feed, which features articles on the page that appears when you open a new tab in the Chrome browser."
Welp, now I know why I get traffic to my blog from this thing. WordPress defaulted to enabling AMP by default, and I never bothered to turn it off.