You can bridge USDT through bt.io it supports tron... @officialjustlend

Unfortunately, it is not possible to bridge USDT between the Tron, BSC and ETH networks. This is due to the fact that USDT does not support cross-chain transactions between these networks. As such, if you attempt to bridge USDT from one network to another, you will receive an error message stating that the token does not support cross-chain between networks chosen.

we can't bridge usdt from tron to bsc/eth , only xxx chain to bttchain or vice versa. usdd has no such issue

It gives this error: "This token doesn't support cross-chain between networks chosen"