Easiest buttermilk biscuits

I had a craving for biscuits, ones that would be rich but also light, that would be a perfect foil to melted butter or also sweetened strawberries. This recipe, recommended by Lainey Gossip, does indeed live up to its name. The only problem is, I cannot find buttermilk in Taiwan, and instead must use soured milk. I'm sure this must affect the flavor of the final product.