Perhaps the Europeans will end up funding Firefox to get away from American corporate tech dependency. Firefox has tried valiantly to get away from Google money but it's difficult to fund browser development from small donations or without cross-subsidies from other business, like web advertising.

The first party developer in case of Brave is arguably worse than most 3rd party developers elsewhere.

And Brave's built-in blocker uses uBO's and other lists, including allowing trusted filters (which can inject high risk scripts into your sites) automatically. So yes, you are using 3rd party scripts already, and no, they can't monitor all of the commits from all those lists.

I would argue that third party developer is more reliable and trustworthy than both Brave and Mozilla