I usually use USDT to convert my altcoins like when the price of crypto is going down, there are many stable coins in the market and very useful, but most I like is USDT.
I don't see USDT as a useful stablecoin this days after the recent accusations made towards them by the US attorney which also leads to some crypto exchange site listing the stable coin while some stop/pause USDT pair trading.
I will advise you to stop using the coin while you use the other stablecoin we have in the market to be incase.