Coinbase wallet can connect to Coinbase.com. But some website doesn't use Coinbase wallet. Most websites use Meta Mask wallet. Which one is better Coinbase wallet vs Meta Mask wallet?
if you are a loyal coinbase user, then you should use a coinbase wallet,
but in general it is better to use metamask, because many DEX exchanges also use metamask to connect to it,
yes both are important, because the more wallets you use the more secure you are