How does @Embeddable and @Embedded mapping work in Hibernate 7?

@Embeddable
public class Address {
    @Column(name="street") private String street;
    @Column(name="city")   private String city;
    @Column(name="postcode", length=10) private String postcode;
}

@Entity
public class Customer {
    @Id @GeneratedValue(strategy=GenerationType.IDENTITY)
    private Long id;
    private String name;

    @Embedded
    private Address shippingAddress;  // columns: street, city, postcode

    // Hibernate 6 approach (verbose - one @AttributeOverride per field):
    @Embedded
    @AttributeOverrides({
        @AttributeOverride(name="street",   column=@Column(name="billing_street")),
        @AttributeOverride(name="city",     column=@Column(name="billing_city")),
        @AttributeOverride(name="postcode", column=@Column(name="billing_postcode"))
    })
    private Address billingAddress;

    // Hibernate 7 NEW (incubating): much simpler!
    // @Embedded
    // @EmbeddedColumnNaming("billing_{column_name}")
    // private Address billingAddress;
    // Generates: billing_street, billing_city, billing_postcode
}