What chain is FTM on?

Could you please enlighten me on which blockchain network FTM operates? I'm curious to know if it's on a major chain like Ethereum or perhaps a lesser-known one. Understanding its underlying infrastructure would greatly aid my comprehension of its functionality and potential. Is FTM integrated with any specific bridges or protocols that facilitate cross-chain interactions? Additionally, I'm interested in knowing if FTM has any unique features or advantages that set it apart from other cryptocurrencies in its class. Thank you for your assistance in clarifying this matter.