One of the ways in which Optimism would benefit from Coinbase’s layer 2 protocol would be through the fees generated by Coinbase.

The exchange would be contributing a portion of its fees collected on its network to the Optimism protocol. With the help of the fees collected through Coinbase, Optimism can earn more revenue.

With another stream of revenue added to the Optimism protocol, it could reduce the fees applied to the users on its network and help them save more of their ETH.

This would make the Optimism network more attractive to crypto users and it would help the layer 2 solution outperform its competitors such as Arbitrum.