As mentioned by Luigi, you have received WETH on the Ethereum network. In case you want ETH, you need to unwrap it. You can do it using your MetaMask swap.
To see WETH in your MetaMask wallet, please do as follows:
In your wallet, under the Tokens tab (Ethereum chain), click Import tokens. Then search WETH and add it. You can add it using the custom option as well. The WETH contract address on Ethereum is: 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
For further information, please refer to the following article.