Which of the following is NOT a good use case for lazy loading?
The main navigation menu is not a good candidate for lazy loading because it's a critical UI element that users expect to be immediately available. Lazy loading the navigation would create a poor user experience with visible loading delays for a fundamental interaction point. Good lazy loading candidates are components that aren't immediately needed (like modal dialogs), are outside the initial viewport (below the fold), or represent features that only certain users will access (admin panels, authenticated features).