No there's not. Trades on exchanges are under 0.1% [1]. ERC20 tokens have some fees because of gas but it's a flat amount [2], which is negligible for any operation over a thousand dollars. Fiat withdrawals are generally free [3]. The most expensive part usually is the gas to interact with the DeFi smart contract, but it's also a flat fee.
[1] https://help.ftx.com/hc/en-us/articles/360024479432-Fees
[2] https://etherscan.io/gastracker 0.75USD as of now, but it can reach like 10USD when the network is congested.
[3] https://help.ftx.com/hc/en-us/articles/360043023772-Depositi...