There is no ideal Ethereum fees, because Ethereum Fees are always unstable,
this makes Ethereum users if they want to transfer they have to check the gas station first,
https://ethgasstation.info/,
if GWEI is getting bigger then the fees are also getting bigger, currently low The Gwei is at 30, pretty cheap
yes, I always check before making a transaction. but if I want to do a SWAP on uniswap and the price soars I will do it right away even though the cost of GAS is expensive. so, I can cover the cost of GAS from this profit