Vendor Layout

The Vendor layout is responsible for handling the Store category pages behavior and display.

From the Vendor layout under Catalog >> Preferences, this is the General Preferences for all vendor's pages where you can configure the display

Vendor layout preferences looks like this;

Header section handles the behavior of the vendor header in the Vendor page (category description, name, etc..)
Carousel section handles the behavior of the product carousel under the Vendor page
Categories section handles the behavior of the categories under the Vendor page

Search section handles the behavior of the search section under the Vendor page
Items Listing section handles the behavior of the items listed under the Vendor page

Storefront vendor page looks like this;