At the time of writing, just under 9M Ether has been staked on Ethereum’s Proof of Stake. This represents 7.33% of all Ether which are locked until withdrawals are enabled, indicating huge confidence in the future of the network.
The amount of ETH staked is expected to continue its gradual increase until post-merge due to increased APY, as a result of unburnt fee revenue and MEV going to stakers instead of miners.