NFT activity on marketplace OpenSea over the Polygon network has soared the past months. As NFT activity shifts to Polygon, users save hundreds of millions in Ethereum gas fees. With global brands consistently dropping their collections, NFT activity on the dominant NFT marketplace OpenSea, using the Polygon sidechain network, has been on the rise for several months, hitting new record highs in January. Users have been able to trade NFTs on OpenSea over the Polygon network since July 2021, an...