A quick search shows all sorts of projects choosing Ubuntu. Can you explain a project like mail-in-a-box going with it? And 5.15 kernel at that..

People make bad choices all the time for many different reasons. Usually, “it seemed like a good idea at the time” is at the top of that list.

	▲	bityard 9 minutes ago \| parent [-]
		But by definition it wasn't a bad choice (or a mistake) if it seemed like the right choice given the information available at the time. Unless you have some sort of crystal ball the rest of us don't.