All these days, it was free or zero cost to withdraw USDT TRC20 but suddenly from today, they have changed it to 0.20 USDT. I don't know if BUSD fee was 0 from the beginning or not but now it has been decreased to 0. The target is to boost the use of BUSD. This is the manipulation of Binance. There’s more to come.
It can be a manipulation of Binance to force people use BUSD more but I think it is normal changes when one blockchain is used more, and higher transaction counts it has every day, transaction fee will rise. I don't know how the transaction fee on TRX network changes but with its adoption rise I have a thought that its transaction fee is increasing.
Tether Use on Tron Passes Ethereum as Low Fees Attract Small Transactions