This. (and even some of those beliefs which can be determined to be true/false aren't determined to be true/false based around representing my beliefs as a logical syllogism. If you want to evaluate whether my belief about the book being on the table is still correct, it's probably more productive to look at the table than evaluate whether my argument depends on implicit premises like my eyesight having been reliable and nobody moving the book in the last five minutes. And if I'm wrong it's probably memory failure or knowledge gaps rather than faith in the premise that the book could not have been moved)

And some of my beliefs which are pure logical fallacies when it comes to formal debate like 'Brain Force Plus is unlikely to be a useful nootropic because the man promoting it, Alex Jones, is a mountebank' are actually pretty useful heuristics.