Nvidia sold defective GPU's that affected every 2007-2008 MacBook Pro. It was a manufacturing defect and every chip was guaranteed to fail. It was a bad look for Apple that cost them millions having to replace logic boards. The defect wasn't corrected for several years leading to some people having multiple logic board replacements.
They, and everyone at the time, were kind of forced to switch to lead-free solder by RoHS. At that point, there probably hadn't yet been tests showing the results of constant thermal cycling, so the brittling effect was unknown. Apple was particularly affected as an early adopter because of their PR stance on environmental issues.
Refusing to acknowledge anything was wrong was the real problem. But that's just a reminder that companies don't care about you. Brand loyalty is a quagmire.
https://blog.greggant.com/posts/2021/10/13/apple-vs-nvidia-w...