I dunno man, Apple's PCB designs are incredibly space efficient. Compare the sandwich PCB of a modern iPhone against the main board of something like a Samsung Galaxy. Apple is sweating out every cubic millimetre it can, while Samsung is perfectly fine with a load of empty green PCB all over the place.

Does discrete circuit density correlate with engineering quality somehow? Are we back around to the parable of Master Foo and the Hardware Designer in the year of our lord and savior 2025?