This was the answer, but it seems to be bugged on the current samsung OS. Every time I lock my phone it comes back and I have to toggle that notification category on and off again. Blocking notifications from the app wholesale gets rid of them, but I’m worried I’d be turning off something important if I did that.

Long time Brave user here! This list of chromium features changed for privacy reasons may ease your fears. One of the founders of Brave, Brendan Eich, was actually CTO of Mozilla (firefox) for a time, as well as the creator of the JavaScript programming language used in web development. One of the large reasons he left to found Brave was that he became disenfranchised with unethical handling of user data. Before the first line of Brave code was written it was dedicated to providing a safe, private user experience.