"brave" ist based on "chromium", started by... guess :-)
google.
I use Yandex - the Russian stuff. Browser as well as search-engine (it finds also all the stuff censored on google).
Maybe the Russians also spy us - but I don't care at all about them.

The Chinese searchenginge "baidu" is not bad. For lot topics it finds much more than google. Google results are badly censored on lot of critical information.