Apple is the best company in the world at operations. I don't know how they do it but:

1) Ever year they manage to diligently upgrade iphones/ipads, macbooks and watches.

2) Every year they make some progress in their quest of removing suppliers by becoming vertically integrated. They don't only remove the supplier. They beat their former suppliers specs. (e.g: M1 chip).

3) Every year they make some progress in their quest of generating more revenue from services. They are managing to launch one or two services a year or create a new program that integrates services into attractive bundles.

All those things are incredibly hard operational challenges. Nothing there seems to be easy and some how they manage to always come ahead in delivering that operational excellence.