Weird. It may sound subtle ( another weird word), but my mouth is definitely doing different things. Ought has a definite diphthong whereas aught may have one, but much more slight and with a more closed mouth.
Languages are weird.
Edit: aught is likely grown out of naught! I mean, that obviously makes sense, just never actually thought about it.
Ah yes. The “nonsense drawer” as my youngest labeled it. It has stuck. In my parents family it was called the junk drawer.