[Moving Values] Accessing fields of a borrowed struct instance

In Chapter 5 (An Example program using stucts), the example uses a scalar type u32 for the Rectangle struct with this note underneath

... note that accessing fields of a borrowed struct instance does not move the field values, which is why you often see borrows of structs

https://doc.rust-lang.org/book/ch05-02-example-structs.html

I tried to write the Struct and referenced a string in the update_user function as seen in the image below. The compiler raised an error

   |   ^^^^^^^^^ move occurs because `user.name` has type `String`, which does not implement the `Copy` trait

Is that statement correct or do I not fully understand what it mean? Or does the statement only apply to types that implements the Copy trait? Can anyone explain what the problem is?

Start with the linked Chapter 5 section, then reproduce the update_user example using the borrowed struct and String field described in the issue. Compare the field-access behavior for the documented scalar example and the String case; done means the chapter clearly explains the scope and limitations of the statement.