Brave exposes controls for all of its privacy and crypto features and you can easily opt in or out of anything that concerns you, making it a great choice for privacy.
It really smacks of hypocrisy that everyone is all for multitude of open source solutions, except when it comes to browsers. Mozilla has made many misteps regarding privacy and I've never seen attacks like this. To say that browser wars are political is an understatement.
Even assuming the worst, that being that Brave is trying to track you and build an ad network rivaling Google, that still seems in sum total a good thing. Google has gone down a dark path completely unchecked with their unimaginable omniscience and ad revenue, and I welcome an attack on their monopoly.