Is USDT illegal in China?

I've been hearing rumors that USDT, the stablecoin pegged to the US dollar, is illegal in China. Could you please clarify this for me? I'm quite interested in cryptocurrencies and finance, but the legal landscape in China seems quite complex and murky. Is it true that USDT is banned or restricted in China? If so, what are the specific reasons behind this? And how does this affect investors and traders in China who might be interested in using USDT? I'd really appreciate it if you could provide some clarity on this matter.