Where's Microsoft? They have the most to lose if Intel goes under.
An architecture switch where a lot of software won’t run well (or at all) is a big risk for them that people could start to go elsewhere in non-trivial numbers.
Apple, Linux, Chromebook.
Yes they have a compatibility layer for running x86 on ARM. They could make it for other archs. But that’s still a big effort and consumers may not trust.
That said, has anyone checked in with Lisa Su on this?