Metamask shows ETH into Assets but I can't find them on etherscan

My Metamask shows some ETH into Assets but when I press “View in Explorer”, etherscan shows nothing, EtherValue: $0.00, how is it possible? I have also a Smart Chain with the same address and everything works fine.

Chrome + Windows 11


The point is that when I switch from BNB Smarth Chain to Ethereum Mainnet, Metamask shows the same amount of BNB and ETH, but I have no ETH in this wallet.