This site appears to provide a reasonable analysis of all the common browsers. It was mentioned on HN a year ago to zero comments. Chrome is completely indifferent to prevailing privacy compromises. Brave is locked down pretty hard. This one is amusing: "Brave: Add noise to Canvas, WebGL and AudioContext APIs to make fingerprinting more difficult"
https://www.cookiestatus.com/
I don't think it's been updated yet for this new Firefox feature.