Side bar or ‘Hamburger’ feature - What's the deal?

Do you get hungry hitting this menu button? Universal, scalable and mobile friendly- what more could you ask for? The sidebar 3-bar icon, or ‘hamburger’ icon is also perfect for a multitude of languages, can support a growing road map of products and is global recognised. But they can also be tricky to implement, see why;
https://spindlelegs.co.uk/side-bar-or-hamburger-feature-do-you-get-hungry-hitting-this-menu-button/