Apple gets enough. Their need for chips is not growing as high as Nvidia's.

I think you are trying to say that Nvidia has lock-in due its massive reservations and it starves others out. That's partially true real bottleneck currently is CoWoS/CoWoS-L packaging, not the chips. Nvidia is reaping the benefits of being pioneer who helped to make it possible. I'm not sure of the exact numbers, but I think Nvidia has over 60% capacity reservation of TSMC CoWoS.

That kind of lock in is only temporary. Anyone can reserve ahead of time and take the risk of failing to get competitive node and suffer the losses.

ps. Nvidia is paying 50% to 100% premiums over standard prices just to secure "urgent" additional capacity beyond their original reservations. If others want that capacity they can bid.