Has anyone tried Gluten Free flour in this recipe?

I have not, but I have seen a lot of recipes for GF pistachio cake that call for mixing GF flours -- for instance - half rice flour and half almond flour, or in this one from a community member, mixing almond flour, sorghum flour and potato starch: https://food52.com/recipes/25780-gluten-free-allmond-pistachio-cake.