@vitalik.eth
My concern about LUSD (at least, from last time I looked at it) is that I think it has a weak story of what happens if equilibrium interest rates on the USD go negative.
See this from my post two years ago: https://vitalik.eth.limo/general/2022/05/25/stable.html
Key setnence: "for a collateralized automated stablecoin to be sustainable, it has to somehow contain the possibility of implementing a negative interest rate"