Hello,

-To hide menu in header (only for landing page), add this css into your Custom Css box in General Options:

.page-id-4247 .header_wrapper.header_11.background--light {
    display: none;
}

-To align text in slider, add this code:

.codeless_slider .swiper-slide .content.vertical_centered {
    margin-left: -60% !important;
}

-Yes, you can add a link to a section in the page. Just make sure to have the link as full link (example: https://www.rcmedici.eu/landinggiovane/#section-id) Where the “section-id” is the id set in the row settings of the section where it will link to.

The result screenshot with the above css implemented: https://postimg.cc/image/x2nmnjeev/

Let me know.
Best regards!