What people mean in AI-assisted programming discussions

I’m a senior software engineer with over 15 of experience, worked on both frontend and backend, mostly backend in recent years. I mostly worked at companies where I was in a team of developers. When people online discuss AI-assisted programming, they always repeat certain claims which I don’t quite understand, for example:

1. “With AI you get to focus on what to build, not how to build”. From my experience working in organizations, it’s the product managers who decide what to build, so I don’t understand how it helps me as a developer.

2. “With AI you get to focus on the architecture instead of code”. From my experience, it is usually the architect and/or tech lead who make the architectural decisions where the rest (including seniors) just grind through features, so again, I don’t understand how it helps me as a developer.

I could understand these claims if I were a freelancer/business owner/product manager/architect, but this is not the case for a lot of developers.