Is PrimeXBT legal in the UK?

Could you please clarify for me the legality of PrimeXBT in the United Kingdom? I've been hearing about this platform quite frequently in the cryptocurrency circles and am considering investing. However, before making any decisions, I want to ensure that it's operating within the legal framework of the UK. Could you provide some insight into whether PrimeXBT is regulated or authorized by any relevant authorities in the country? Additionally, are there any specific risks or considerations I should be aware of when dealing with such platforms? Thank you for your assistance in clarifying this matter.