recently uniswap reported about the fee on 27/8/2021 with a fantastic fee price, because many altcoins use uniswap swaps, What do you think?

Unbelievable! 500 gwei for transaction fee is too much for me. Better to wait for a good time to submit the transaction on ETH network.
Many altcoins are using uniswap indeed, but they actually can using pancakeswap on Binance smart chain to avoid high cost on transaction fee.