Is OKX legal in the US?

I've been hearing a lot about OKX recently, and it seems to be gaining popularity in the crypto world. However, I'm a bit concerned about its legality in the United States. Could you clarify whether OKX is legal to use in the US? I've seen conflicting information online, and I'm not sure who to trust. As a professional in the field of cryptocurrency and finance, your insight would be invaluable. Please let me know if OKX is compliant with US regulations and whether it's safe to use for Americans. Thank you for your time and assistance.