Any of the addresses from your account in the electrum wallet should be fine. At the end of the day, they are all part of your account.
Thanks, that’s the first vital piece of info I needed!
The transaction was confirmed on Coinbase; on my dashboard it says that the BTC was sent.
What is important is to check if your transaction is already registered in a block in the blockchain.
To check that you can use any blockexplorer and just type the address you used from electrum