Widgets come in three different styles - Icon and CTA Widget, Image Widget and Stacked Widget. The number of widgets per row is configurable and the width can be set at full screen, inset (same width as the nav bar) and narrow.
Where the Widget Component requires each widget to be created and setup individually the Sub Page Listing component is the same component but can be pointed at a folder of content and will create widgets representing each of the child pages with links.