I generally don't care about personalities involved in tech. I mean, Peter Theil money also started Brave. If that's not a dealbreaker, then I don't know what is. But tech people get weird at a certain point, and until they do something like sieg heil someone a couple times in a room full of wannabe Nazis, I'm pretty ambivalent if the product works.
That being said, Brave doesn't spoof or mask canvas info when I've tested it, and IIRC audio info, leaving very specific aspects of browser fingerprinting open. It does spoof fonts, which is great, so maybe they'll get there one day. So it's not a silver bullet or Tor by any means.
Speaking of which, JS is a very easy way to track people across the internet as well. So I have to manage JS exposure when I need real privacy. So nothing's perfect. No one is superhuman, and everything is subjective. If Brave works for you, cool. I've never trusted it, but I'll use it when the moment demands something more than Vivaldi.
I hate to get all conspiracy theory, but the guy knew that a Congressional hearing on the Epstein Files was happening. He is a skilled manipulator. So what does he do to suck all the air out of DC? Nothing. He takes a few days off, his social media goons see the "is he dead?" stuff on X - I'm not even sure that they didn't push it - and then anything he did at any point would be the lead news. So he trots out a super-size nothingburger and the media can. not. get. enough.
Did that hearing make the "Breaking!" Fox News chiron? Nope. Totally drown out by this guy.