I feel like fallacies can always be applied to anything because unless you're doing pure math (and even then, tons of caveats - one major one being that you already bought into the framework), you can always question deeper assumptions and yes, structurally it might even fit a fallacy. I mean, is-ought is one of the famous unresolved ones.

Yet we still have arguably correct beliefs in spite of fallacies. That suggests that merely pattern matching isn't a good solution to detect what "truth" is...