A loading screen is a feature that is used to indicate that the application is still processing and has not yet completed the task.

A loading skeleton is similar to a loading screen, except it gives the user an idea of the shape of the pending content

Scroll spy navigation is a feature that highlights the current section of a page as the user scrolls through it.

Pagination is a feature that breaks up content into smaller, more manageable chunks, allowing users to navigate through it more easily.

Error handling is a feature that helps users understand what went wrong when something goes wrong.