"Other stablecoin solutions often discussed in the Bitcoin community include stablecoins on Taro and RGB, and synthetic USD using inverse perpetual swaps, such as those enabled by Stablesats. These solutions should be welcomed and explored, but they do have limitations. For example, Taro has limited scripting capability. "
Yes, Taro have limited script while RGB is Turing complete
https://bitcoinmagazine.com/technical/world-needs-bitcoin-backed-stablecoins