Side panels are a versatile UI element that can enhance the user experience by providing secondary navigation, contextual information, or additional tools. However, designers must be mindful of how they implement these panels to avoid overwhelming or distracting users.

Eric Chung outlines several common use cases for side panels, including navigation, discoverability, customization, and help. Navigational panels allow users to quickly access important sections, while discoverability panels highlight trending content or features. Customizable panels give users control over their experience and help panels provide quick access to information.

By carefully considering the content and interaction of side panels, designers can create a functional experience that enhances the user’s journey without becoming a distraction. The key is striking the right balance between providing valuable supplementary information and maintaining the focus on the primary content.