GrapheneOS Yes, I reread the Mozilla documentation and actually got confused, but it's not super clear either, add to that that many people confuse the two topics, which leads to misunderstandings in discussions.
GrapheneOS YouTube ads can't be blocked with declarative network-based filtering but rather require invasive changes to the site which are regularly changed to keep up with it changing.
Yes, then the adversaries adapt, it's basically a game of cat and mouse.