At the time of writing, MetaMask cannot connect to Coinbase Wallet. This is because MetaMask is a browser extension and Coinbase Wallet is a mobile app.
However, it is possible to use MetaMask with Coinbase by using the Coinbase Wallet app to generate a QR code that can be scanned by the MetaMask extension. Once the QR code is scanned, MetaMask will be able to access your Coinbase Wallet account.
The main reason why you would want to use MetaMask with Coinbase is for the added security that MetaMask provides. When you use MetaMask, all of your private keys are stored locally on your computer and are never shared with any third-party servers.
This means that even if someone were to hack into Coinbase’s servers, they would not be able to get your private keys and steal your coins.
Another benefit of using MetaMask with Coinbase is that it allows you to easily switch between different Ethereum networks. For example, if you want to test out a new Ethereum network or use an Ethereum network with lower fees, you can easily switch to that network in MetaMask without having to create a new account on Coinbase.
Overall, using MetaMask with Coinbase is a great way to add an extra layer of security to your crypto transactions and also allows you more flexibility when using different Ethereum networks.