Apple is just Stockholm Syndrome at scale. I wouldn't trust anything they say about privacy, especially given how closed their ecosystem and hardware is.
Like, a significant portion of the people who were involved in any screwups made in the 2000s -- especially the more senior people who should get most of the blame -- are now retired.
Make decisions based on today and on reality. Apple holding a grudge against Nvidia today, if true (as we have no proof that it factors in, of course), is downright childish.
Apple had the opportunity to take Apple Silicon to the datacenter and become the #1 professional ARM microarchitecture in the world. It was Apple's stupid grudge that gave Nvidia everything they needed to sell thousands of their lazily-made Grace CPU.