What is the difference between wrapped ETH and ETH?

Could you elaborate on the distinction between wrapped ETH and ETH? I'm interested in understanding the core differences between these two assets, especially in terms of their functionality, usability, and the underlying technologies that support them. I've heard that wrapped ETH has something to do with interoperability and bridging the gap between different blockchains, but I'm not quite sure how it differs from regular ETH. Could you break it down for me in a simple yet comprehensive manner?