I don’t know if I am missing a point or not but I don’t exactly quiet get the hype as to me, it just chrome with poor man’s uBlock Origin and their own crypto in the mix.
Like how it that different from me using ether Librewolf or even Google Chromium and install uBlock Origin compare to Brave?
But that is a bit stupid, you can go to any search engine using Tor network too, why would I want to do it via .onion it is just slower, if you browse to youtube.com, the connection is already going through Tor, so the connection is already private.
Second thing, I am on Firefox and I can access to that link too, I have Tor on my Firefox too. So if I want to do a private search I just use a searx instance and from Tor I do any search I need.
So I don’t see what you are saying makes any sense.