So you’ve just entered the Matic network. You transferred your ETH from the Ethereum network to the Polygon (Matic network) but your ETH isn’t showing up on your MetaMask.
Here’s how to fix that.
In the list of tokens below, click on the 3 dots on the right side of the Ether row.
You’ll see a dropdown option saying ‘Add to MetaMask’
Click on it, then you’ll see MetaMask’s confirmation popup