Admittedly.....410a is classified as a "near" azeotrope refrigerant directly because there is little slide or glide between the blends but the fact remains that it can seperate. In fact there are many cases where it has which it turn will cause irractic pressures and operation of the equipment....this is why all zeotrope refrigerants, including 410, must be charged as a liquid.
410a, despite its good qualities, is a very poor refrigerant when compared to some others. Equipment components are more
patio covers expensive due to a need for greater design & build to be able with stand the extreme differences. That being said 410 is here for now so we all have to deal with it.
Do not be surprised however to see 407c in the near future. It has a closer characteristics to R22 and a lower GWP than both R22 or R410.