Jupiter X theme lets you use a default customizer header and footer or create a new custom header or footer from scratch using Elementor. The process of creating a header and also footer using Elementor includes creating a header or footer template and assigning it to a page. Creating the header and footer using Elementor allows you to use all of the Elementor elements, allowing you to have a highly customized header or footer.
Difference Between Default Customizer Header or Footer and Custom Elementor Header and Footer?
Simply put, the default customizer for header and footer has limited options and styles while the custom Elementor header and footer has pretty much unlimited customization because of it’s widgets. This means that you will be able to add any Elementor element to the header: buttons, images, headings, icons, etc.
Customizer header and footer feature is a great way to quickly create a simple header and footer to use on your website. However, if you are looking for some specific header design, Elementor will allow you to do that.
If you want to learn more about creating custom header in Elementor, please refer to this article.