Does Polkadot have a dex?

I'm curious to know if Polkadot, the popular blockchain network known for its interoperability and scalability, has a decentralized exchange (DEX) integrated within its ecosystem. A DEX would allow for peer-to-peer trading of digital assets without the need for a centralized intermediary, potentially enhancing security and reducing fees. So, does Polkadot indeed have a DEX, and if so, what are its key features and benefits for users?