Your homepage may come with elements or sections that you prefer not to display. These features are an expression of your theme. You can often switch to a different theme that doesn't have that element or section, but if all themes you're willing to use have it, you may be able to hide or disable it individually.
In your Admin Area, open your Store Editor app and access the Content section. From the Home menu, select the relevant heading(s) that may contain the element(s) in question (options differ by theme).
As an example, if you wanted to remove the "Featured Products" section from the Montreal theme, you could do so by pressing Homepage Content > Featured Products, flipping the Show toggle to the off position, and saving.