These elements frame the entire site and guide navigation.
The header
It usually holds the logo and the main menu. In the free version the header is handled by the theme; with Elementor Pro you can build it visually.
The menu
Create it under Appearance → Menus: add your pages, put them in order, and keep it short (5 to 6 items maximum).
The footer
A trust-building area: contact details, legal notices, social links and a final reminder to get in touch.
Advice: a short, clear menu reduces confusion and increases conversions.