When you install Joomla, it has a menu link to the frontpage component which is by default the homepage of a site.

In Joomla, the homepage is the main landing page of a website, typically the first page visitors see when they navigate to the site’s domain. The homepage serves as a central hub, providing an overview of the website’s content, navigation links to other pages, and often highlights important or featured content. In Joomla, the homepage can be customized and designed using various modules, components, and templates to tailor the layout and appearance according to the site owner’s preferences and the target audience’s needs.