Ecosystem Interoperability refers to the capability of a Proof of Stake (PoS) system to seamlessly connect and interact with multiple decentralized applications (dApps) and blockchain protocols. This feature is crucial for enhancing the utility of staked assets, allowing users to leverage their staked tokens across different platforms for various purposes such as governance, lending, and yield farming. By enabling interoperability, PoS ecosystems can foster a more integrated and collaborative blockchain environment, driving user engagement and expanding the potential use cases for staked assets.