End-to-end encryption is not a term used for communication between clients and servers, although I saw several marketers trying to do it.

For normal people E2EE means privacy, and that's why some company tries to sneak the term in products where it makes no sense.

> For normal people E2EE means privacy

It's misunderstood.

In the begining it's used to describe chat apps, your chat message are delivered in a secure way.

But later some marketers try to use it as a "transport channel" for client-server interactions.