In practice, some CMPs used to share positive consent across websites, but did not share negative consent. So if they tricked you into accepting once, they keep

In practice, some CMPs used to share positive consent across websites, but did not share negative consent. So if they tricked you into accepting once, they keep it; if you refuse, they keep annoying you. My understanding is that watchdogs pushed back, which is why the whole sharing thing isn't as prominent anymore.