I think its because Google isn't afraid of them in the least.
It also is probably a decision made to prevent monopoly complaints. If they were to stop ads for Brave or other browsers showing, using their advertising arm either on Youtube, or the web in general, it would bring attention to and provide an impetuous to break up Alphabeta (Google's parent company) for being too broad.
It also is probably a decision made to prevent monopoly complaints. If they were to stop ads for Brave or other browsers showing, using their advertising arm either on Youtube, or the web in general, it would bring attention to and provide an impetuous to break up Alphabeta (Google's parent company) for being too broad.