A few things to remember about Gas fees:
1) When a transaction fails, the Gas used is usually not refunded, because the network has still processed it.
2) Since the 2021 London upgrade (EIP-1559), Ethereum Gas fees have been split into a base fee and a tip. The base fee is burned.
3) Keep a small amount of ETH in your wallet to pay Gas fees; otherwise, you won’t be able to transfer tokens.
The amount used to pay Gas on Ethereum is $ETH . Current: 2506.03.