Let's be real here, TSMC's growth is there with or without Apple.
It’s not obvious it would be had Apple not started pumping stratospheric amounts of money into them years ago. And they’re still pre-paying new fab development that TSMC might find it challenging to afford without them.
(Disclaimer: casual observer at best. May be misrepresenting what I’ve heard.)
That's not clear at all. TSMC's capability growth _started_ with Apple fabbing with them