What is different between Usdt and TUSD?

Could you elaborate on the key differences between USDT and TUSD? I'm particularly interested in understanding how they differ in terms of their issuance mechanisms, the blockchain platforms they operate on, and the underlying reserve support they have. Additionally, it would be helpful to know if there are any notable distinctions in their market performance or adoption rates. As a professional in the field of cryptocurrency and finance, your insights into these matters would be greatly appreciated.