The Home administration region is not an out-of-the-box feature. It appears to the higher user roles if any of the admin-side plugins that employ it are installed.
When relevant, the Home administration region will be seen in the administration navigation from all admin-side views except when you are in context of the Plugins panel even for the administrator. This behaviour ensures being able to safely deactivate and/or remove outdated or buggy plugins if they are causing problems. To access the Home administration region from the Plugins panel, move to anywhere else in the admin-side first, and the Home administration region will appear in the navigation again
When you upload a plugin that uses the Home administration region, a new panel option will appear under the region that provides the plugin’s associated functionality or configuration controls.