What is the Samsung DeX app for?

I'm curious to understand, what exactly is the purpose and function of the Samsung DeX app? How does it differ from traditional mobile experiences, and what kind of users might find it particularly useful? Does it enhance productivity, gaming, or both? Additionally, what are some of the key features that set it apart from other similar applications in the market? I'm eager to learn more about how this app could potentially revolutionize the way we interact with our devices.