Page content types from Add It explained

To add a Page to an Atlas workspace you are recommended to use Add It for the best experience. You go to your workspace, click Add It, choose Site Pages, and then you are asked to choose the visual layout based on the type of content you're going to create. When selecting your style you automatically get presented with a preview for the chosen page style.

But what do these "styles of page" mean?

Landing Pages

The "Communication Landing Page" and "Knowledge Landing Page" should only really be used if you are creating a page to replace your existing workspace homepage. In that case this lets you create and perfect a new homepage without editing the existing one. Once your new page is built you can set it as the new homepage to override the previous one. They can be searched using the Landing Pages scope from the search panel.

Knowledge Pages

Knowledge Pages are the standard default type of page, in other systems you might just call them Content Pages. These are intended for your general informational pages about specific topics and include a Related Knowledge section to bring in content with similar tags. They can be searched using the Knowledge Pages scope from the search panel.

Location Pages

Location Pages are intended to be created to showcase your locations, offices or work sites, including an interactive map web part and bringing in content related to the location. They can be searched using the Locations scope from the search panel.

News Page

News Pages are intended for your News articles. The template includes a Related News web part bringing in News with similar tags. News Pages have a specific date field which is used to show News in the correct order when returned on pages. They can be searched using the News scope from the search panel.