The popularity of DeFi is also causing problems because of the high fees. It seems it is more expensive to pay gas than use BTC transaction fees these days.
Is not it the defi was pegging to the blockchain? all of txs have been made on the defi will be broadcasted to the blockchain instantly, that means the fees play nothing in the popularity of defi. I think that you didn't understand how the mechanism of defi is working these days. you should learn more about that dude.