You can exchange your stablecoins for fiat through platforms like Bisq[1]. And also, NO KYC!
Well, that should work for OP if it does what you say it does. But it just seems like an unnecessary step to even own a stablecoin--maybe I just don't get the point of them.
I assume OP wants to hold stablecoins in a way that he wants to hold fiat(or something non-volatile), but at the same time without the government knowing of the money. At least that's the only excuse I could think of of holding stablecoins in a mid-long term timespan.