OP is alluding to the fact that Apple hasn't created industry changing categories like the iPhone.
Like the brands I've mentioned, Apple buys their camera sensors (from Sony), battery, and display. And yet they don't have the best camera sensors, the newer higher capacity batteries, the latest display tech, etc.
You can go 2 or 3 iterations before seeing a real improvement, and it's not always because better tech doesn't exist. They're just not pushing hard.
Apple Silicon in the past 5 years has trounced every single market player. Apple has to make decisions on things like sensors based on the supplier being able to deliver hundreds of millions annually -- by the time we see the hardware it was baked and locked in over 12 months ago.