MetaMask is proactively exiting its operated Ethereum validators within the Lido liquid staking protocol as a precautionary measure to protect client assets.

From the articleMetaMask is exiting validators. Where does the staked ETH go next?Also in MetaMask Security Incident Prompts Exit of Affected Ethereum Validators, MetaMask Exits Lido Validators Amid Infrastructure ‘Security Incident’ - Decrypt, MetaMask exits Lido staking to contain undisclosed 'security incident' - AMBCrypto