What you said above is why I’ve been eliminating the notion of “justified belief” from my arguments. There’s far better ways to justify levels of certainty without having to invoke a notion of “evidence + belief”. Belief goes down rabbit holes.
So many times an argument devolves into, “But how do you KNOW that you know?” “How can you believe [x] when [y]?”
It’s silly and sort of childish to me – the kind of things kids do. “Does he like you or like like you?”
Certainty though is better quantified and you can put together arguments with various substantial certainties that remain even if the final certainty isn’t achieved. But belief is such a elusive ‘feeling’, it strikes me as kind of ridiculous that we use it so often in various metrics.