The new DESK is an ERC-20 standard token on the mainnet, or live version, of the blockchain. However, to avoid congestion on Ethereum, the revamped DESK runs on Polygon. This is a sidechain, or parallel network, to Ethereum that allows more and cheaper transactions by keeping them off the primary chain. CoinDesk will cover the cost of gas, or on-chain computation fees, for DESK transactions on Polygon.
Source: https://www.coindesk.com/business/2022/05/16/desk-is-back-coindesk-relaunches-reward-token-into-the-wild/?utm_medium=referral&utm_source=rss&utm_campaign=headlines