Investors try to build interaction with other available networks in the crypto world with the interest of dragging the maximum benefits that they can make out of the trade they are involved in. Polygon is one of the highly recognized networks 
https://sites.google.com/metmskcrm.com/metamaskchrom/blog/add-polygon-to-metamask
There is no doubt, that MetaMask Wallet is one the best, most reputed, secure, and fast Ethereum-based crypto wallet that offers an easy-to-use interface for beginners to navigate through the platform.
https://sites.google.com/metmskcrm.com/metamaskchrom/blog/log-out-of-metamask