What is Binance FDUSD?

I'm curious about this Binance FDUSD. Could you elaborate on what it actually is? Is it a new addition to the cryptocurrency sphere, or does it have some unique features that distinguish it from other digital assets? I've noticed it's mentioned in the context of Binance, which suggests it might have some sort of connection or integration with the exchange platform. Is that the case? If so, how does it fit into the Binance ecosystem, and what kind of benefits or advantages does it offer to users? Additionally, I'd like to know if it's backed by any underlying assets or if it's purely based on blockchain technology. Any insights you can provide would be greatly appreciated.