I've been obfuscating my fingerprint with Brave for years, which I selected specifically because it was the browser I was able to do this with, based on my testing of 5 popular browsers, using https://coveryourtracks.eff.org/ as my benchmark.
It does mean that sites that uses 2FA (so every site nowadays) flag me as a coming from a new device each visit, and I have to have my phone nearby every time I want to use my computer, which is quite annoying. If you use GrapheneOS, you can obfuscate your phone too on WiFi networks (and sites, but GrapheneOS not needed for that, just Brave). You can't obfuscate yourself on cellular networks though, unless you have a ton of sim cards you rotate through.
> unless you have a ton of sim cards you rotate through
And phones!
For years, I've been practicing good privacy-hygiene in public. At my doctor's office, I always wear a Groucho Marx moustache to keep them guessing. Before I walk into my bank for a withdrawal, I team up with two of my friends, set them on my shoulders, and throw a trenchcoat over us! I made a fake ID with my birthday on July 4th and my weight as 98 pounds, but my pharmacy is now refusing to fill my prescriptions!
So what sort of benefits are you reaping from your anti-fingerprinting measures?
IMO The EFF test is very flawed because it only tests your uniqueness among the other visitors to that site, not the total possible uniqueness from all the bits of data.
I would bet money that Brave cannot defeat CreepJS. The only thing I've ever seen do it, ironically, is Safari in private mode.
Also just using your computer normally and visiting regular websites already tracks you regardless of your browser's privacy abilities, and I promise data brokers don't care what browser you use, your overall online behavior is still unique.