Why does Etherscan sometimes have different addresses than the ones displayed in Coinbase?

I was the victim of a crypto job scam a few months ago and have been looking into what happened. I looked at my transaction history on Coinbase on the block explorer and saw that the scammer paid me from 2 different ETH addresses than the one I paid them to. I did research on this and learned that yes, you can have more than one address, and scammers use different addresses for some of the transactions so it’s not obvious that it’s all them. However, I have also noticed on Etherscan that some of the sending/receiving addresses are different than the ones in Coinbas. Does anyone know why this is?