It is for real and even last few weeks ago, there's a $35-M worth of Ethereum transfer and the fee was that pretty low. If you're being asked to pay for a high fee of gas, go with the recommended or it's simple that don't pursue the transaction if it's okay.
(https://nairametrics.com/2020/08/17/unknown-eth-whale-moves-35-million-dollars-worth-of-ethereum/)
TXID: https://etherscan.io/tx/0x4917c418c73ff208d3811168239447298378d13a5bbe532f6af68393527bf320