That's right, if the transaction fees on the Ethereum platform are very low on the DEX exchange, then I'm sure everyone will use the DEX exchange to swap the coins or tokens they get in some way at the moment, but because of that it seems difficult to happen, so in part people have started avoiding DEX exchanges for transactions, even though the only obstacle is the cost.
As in the past, when Ethereum's cost price was so low, bounty hunters often used forkdelta to sell their tokens for under $ 40.
but if now the number of tokens runs out for fees only
the gas price could become this high also affected by the eth price increase as well and people reluctant to use DEX because they need to atleast make two or more transactions and imagine if one transactions costs about $40 that's food for a whole week goes to waste just for sending which absolutely is unnecessary at this point.