Key to notes to users:
1. It's the cost when you transfer your token (USDT) through non custodial wallet, if you use custodial wallet/exchange, the cost will be higher since they charge more.
2. If you currently have USDT ERC20 or USDT TRC20 which has expensive fees to USDT BEP20 or USDT Matic which cheaper, you can swap your token through swap exchange e.g. fixedfloat or bridge your token through non custodial wallet e.g. Safepal.