Why is the Shareholders’ Meeting called upon to adopt the first part of the Remuneration Report while the second part is just subject to non binding vote?

“The Group Report on the Remuneration Policy and payments is the document submitted to the Shareholders’ vote in the Annual General Meeting in accordance with IVASS regulations on remuneration policies (contained in Regulation no. 38 of 3rd July, 2018) and the regulatory provisions applicable to listed issuers (art. 123-ter CLFI and CONSOB issuer regulation).”