We've seen ReCAPTCHA pop all over ecommerce, all over benign websites with little to no need to challenge use almost completely because of the increase in privacy-aware users.
ReCAPTCHA essentially flies in the face of the recent blocking features rolling into Safari and Firefox and more privacy-aware users...growing by the day.
In many ways it's a genius structure from Google. 1. Convince people to use your privacy challenge. 2. Serve it when you don't see Google tracking cookies. 3. Offer a way around that with the least privacy-aware browser available (Chrome use is growing steadily month over month.
So good on Cloudflare.