Everyone knows that MBTI is pseudoscience, barely better than astrology - with too-vague descriptions and "well most of these sorta fit me" personality descriptions.
Well, you're only halfway right! Buckle up kids, I'm gonna take us on an overly-detailed steelman of MBTI.
to summarize: MBTI types do correlate to practical stuff, most online tests are not great ways of understanding the system (similar to online IQ tests being dumb), the system isn't very great at 'carving reality at the joints', it's part a big-5 cousin and part art form.
imo it's closer to a shitty big-5 that gives labels instead of less actionable but more accurate "higher on this spectrum i guess". Astrology is 100% random