Coinbase's non-custodial wallet added Polygon network as a scaling solution, making it easier to use decentralized applications built on top of the network. Users can also connect to dApps on Polygon through its browser extension. In addition, Coinbase Wallet shows support for Optimistic Rollup, a Layer 2 scaling solution. Recently, Polygon (MATIC) saw enormous growth due to its low fees and high-profile supporters like Mark Cuban.