When to use ergo?

In the realm of cryptocurrency and finance, I'm curious about the timing of Ergo's utility. With the diverse landscape of blockchain solutions, when does Ergo's unique features and capabilities become most advantageous? Is it during the initial stages of a project's development, when scalability and flexibility are paramount? Or is it later on, once the network requires higher-level functions like smart contracts and decentralized applications? Could Ergo potentially play a role in cross-chain interoperability, bridging different blockchain ecosystems? Clarifying these scenarios would help me determine the optimal time to leverage Ergo's technology.