I believe it’s only when they have anti-ddos enabled or CF thinks you’re a bot, it makes you resolve a captcha (sometimes), and that requires cookies and JS.
The chart source is from here: https://digdeeper.club/articles/search.xhtml
Cloudflare makes you activate cookies and JavaScript, which serves to deanonymize you.
Nope, I got it from here: https://digdeeper.club/articles/search.xhtml
It isn’t Digdeeper