I mean, amazon (shopping, along with prime video e.t.c.) runs on AWS.
When I was at AWS, retail was not yet running on AWS. Has that changed?
Prime video does use some AWS services, but live and on-demand are two entirely different beasts.
Prime video uses a non-AWS CDN when I watch football on it here in the UK
It was more "we built AWS to run our stuff and figured out we can sell it too".
While Azure feels like Temu clone of Cloud