Apple might be qualitatively better than most, but I wouldn't call it quantitatively "insanely good". The product design often has major "bugs", like "you are holding it wrong" iPhone 4 or the macbook pro keyboards that stopped working a lot.

I myself had a screen replacement once on a mbp 2015 model because the "protective coating" peeled off... a known problem and Apple replaced it for free even tho I was a few months outside of my warranty.

And the power cable had a tendency to shed off the outer isolation layer and/or "fray", which is by no means a problem only I had given the many "how to fix" DIY youtube videos. Same thing with other cables, like the Lightning ones, I am told.

Cooling in the Intel macbook pros and airs also was a constant problem, and the engineering seems ridiculous at times[0].

That was the product design side... the manufacturing... not really what Apple does itself. The same manufacturers who work for Apple usually work for a lot of other companies as well. It might be that Apple insists on better quality (and maybe even pays a premium). But the iPhones I saw do not look like they had a lot better manufacturing quality than the phones I was using (I am not talking about better/more expensive components, that's a design decision).

[0] https://www.youtube.com/watch?v=iiCBYAP_Sgg