Your first problem is to get 0.0002 ETH for gas fee, now you already got it, but when you want to swap your ARB, you can't because there's a minimum amount to swap ARB to ETH, correct?
1. why eth and arbeth have the same address and why did it go to arbeth and not eth when the person sent me eth?
2. is there any way for me to convert my arbeth to eth without needing to buy more just to reach the minimum amount on exodus?
3. is there any way for me to convert my usdt to btc with some reduced gas fees?
1. Because it's different token, one address doesn't mean can only receive one token.
2. Find instant exchange that allow you to exchange small amount ARB to ETH.
3. Same to number 2.