Is XLM backed by precious metals?

Could you please clarify for me if XLM, the cryptocurrency, is backed by any form of precious metals? I've heard of some digital currencies being tied to gold or silver, but I'm not entirely sure about XLM's underlying assets. It's important for me to understand the fundamental value proposition of this cryptocurrency and whether it has any tangible assets backing it. Could you provide some insight into this matter? I'm particularly interested in knowing if XLM's price stability or value appreciation is somehow tied to the fluctuations in the price of precious metals. Thank you for your assistance in clarifying this point.