This is an embed of a G Suite Slides file using the From Drive icon

"We’re making it easy to add buttons to the new Google Sites. These are clickable graphics which link to other content within your site or at an external URL. Users often click on buttons more frequently than they click on in-line hyperlinks, so they are a good way to guide people to important content. For example you could add a “Contact Us” button to encourage users to get in touch with you. "