I would rather avoid all Ethereum DeFis now, not because they are not stable or not working, but because Ethereum´s fees are terrible, you pay more than 5USD in average for a transaction. This reminds me of the price of Bitcoin transactions in 2017, when the system was overwhelmed and after a time Bitcoin crashed to 6000USD.
I just checked the Gas fee at Etherscan, now you only need to pay $ 1 for the transaction to be confirmed. It has fallen many times over the previous days, and hopefully in the future it will continue to decrease. And I have the same mindset as you, it is the Defi projects that get ETH congested and have a huge high gas fee.
There was a decrease in DEFI activity which led to a decrease in gas costs. It seems that this can be seen by decreasing token transaction activity