Yes, MetaMask is completely compatible with linea.
Linea is fully EVM-equivalent, which means it operates in exactly the same way as the EVM, or Ethereum Virtual Machine. More specifically, it means the network complies fully with the Ethereum yellow paper.
To access Linea in MetaMask, you'll need to select it in the network drop-down selector; if you need help, or run into problems, see MetaMask's article here.