USDT is the most trusted cryptocurrency among others. It's even safer than Bitcoin iteslf. Usually, they call Bitcoin gold, but I'd say that USDT is real gold. It's stable so if you want to have smth constant in crypto, hold this stablecoin.
USDT is controlled, and companies control USDT's price and make it always stand still like FIAT. And you cannot compare USDT with Bitcoin. Bitcoin is decentralized and no one can control its price