What if Amazon take bad choices in "something" and my company is tied up with its services? I know that Prime is always "Amazon" and that's okay. But for a star

What if Amazon take bad choices in "something" and my company is tied up with its services? I know that Prime is always "Amazon" and that's okay. But for a startup (but not only) imho it's better starts with something more "standard" than something as serverless that is obviously an abstraction above other tecnologies.