The receiving addresses is Cashapp address, but what about the wallet that you make the transaction from? Cashapp address starts from 1 right? But you make the transaction from bc1 address? The change address will start with bc1.
According to
cash app support withdrawal is to any address but deposits is to the segwit addresses. But the transaction isn’t looking as though he is receiving in segwit address currently because the receiver address from the explorer is certainly a legacy address while the sending address and the corresponding address is both segwit.
Get the seed phrase or the private key of the the wallet you made the transaction, import the seed phrase or private key on Electrum or a wallet that you can use coin control. Use coin control to spend the coin on the other address that you are seeing on the explorer which is not Cashapp address that starts from 1. Use high fee that can get two transactions included in a black fast because you are making another transaction, making two transactions. With that you pump the fee of the unconfirmed transaction.
Double spending the transaction from the senders end is the only way out now just like you have started but the problem now is, he can only do that if he is not sending from an exchange or any of the wallet that is cannot be imported into electrum
@OP I would advise you take caution of depositing on exchanges like Cash App that holds keys in there custody even if you want to don’t leave your funds there for long, just so you know
Not your Keys, Not your coins