Meh, Brave is still Chroium. Even if they continue to support manifest v2, even today the are selling „good“ ads to the users. That and the Crypto bullshit they tried a while ago makes them untrustworthy in my eyes.
Firefox is the only real alternative.
You are a bit too gatekeepy for my taste here. Buying animals as pets from breeders is fucked up, yes. Stuffing cats full of vegan food that slowly kills them is as bad as feeding dogs raw animal carcasses because some shithead on the internet told you that this is the "natural" way.
But adopting street animals from regions where they are regularly abused and/or killed and with that helping to finance organizations who orchestrate castration programs in those places is not really "burgeois" or a way to "keep them an emotional service slave".