[zinekeller]

Continuing the restaurant metaphor, there is a big difference between Apple's and TSMC's relationship and a celebrity and a restaurant. The celebrity might tweak the menu a bit but it is the chef (and their cooks) which decides on how to cook it. Meanwhile, the Apple-TSMC relation is more integrated: in food analogy Apple also gets to decide what equipment they use, where to source their ingredients and shares some of their secret recipes.

[_aavaa_]

Apple may be their biggest customer but at the end of the day they are still a customer. If TSMC wanted to, or had to, drop Apple as a customer they can. And they can only do this since TSMC isn't Apple's.