AMD also recovered because they couldn't be killed, as Intel was never going to be allowed becoming a single source for x86. I.e. the US military said: We need more than one company doing the processors we need. Not sure if the same is true for Intel today. There are multiple providers for sufficiently powerful processors and from an enduser perspective the actual architecture doesn't matter much. I.e. it's far simpler to repurpose any other source today than it was 20 years ago.

Nokia also recovered, not only they own UNIX birthplace, the Android phones using their branding are actually the few Android ones that get proper updates.

However hiring Elop, with the contract bonus clause to sell Nokia Mobile, was a really dumb move.