Not really, they don't train their own (serious) models and they do a lot of hosting for Anthropic. iirc Anthropic trained a model on Trainium

They're still a competitor, even if that competition isn't going all that well for them so far.

Musk's hosting stuff for Anthropic, too. Still competing with them. Samsung makes stuff for Apple and Android devices. Lots of this in the industry.

The CEO of Amazon is not a neutral actor in this scenario.