How do you use Bifrost?

Could you elaborate on how one typically utilizes Bifrost in the realm of cryptocurrency and finance? I'm particularly interested in understanding the functionalities it provides and how it integrates into existing financial ecosystems. Does it serve as a bridge between different blockchains, enabling cross-chain transactions? Or does it provide a platform for decentralized applications to build on? Furthermore, what are the key benefits that Bifrost offers over other similar solutions? I'd appreciate a concise yet thorough explanation of its usage and how it contributes to the broader crypto and finance landscape.