If you are using exchange that has no kyc verification than you can't be directly connected with coins you send and withdraw, especially if amount of coins is different, but be careful to use good address management and don't use same address multiple time.
There is a danger with if you are using centralized exchanges because they can always lock your account and ask for verification, but there are several good alternatives to avoid these (one eXch is n my sig).
Using dex exchanges like Bisq is also great for this purpose, maybe even atomic swaps and lightning network.