The Rise of Proof of Stake
Proof of Stake became popular with 9 out of the top 20 coins by coin marketcap (with Ethereum the 2nd largest coin working switching to POS in September of 2022) being POS as of January 2022. Under POS, users can stake their coins and the protocols select a validator who adds the new block of transactions and earns the user/validator owner rewards.
What is staking: Staking is when owners of an asset, offer their assets to be used to ensure the functionality and security of the blockchain. In return, the owners of the asset are rewarded by the blockchain.