IN-PAGE LINKS FOR CONTENT NAVIGATION

Summary from the TLDR Design newsletter

In-page links, such as a Back to Top link or a Skip to Content link for keyboard users, can serve various purposes, but one of their most common uses is in a table of contents. A table of contents, usually found at the top of information-rich pages, presents a structured list of the content topics on that page, allowing users to click and navigate directly to their desired sections.