If I were to get a Gemini, it would be an accompaniment to my existing smartphone, not a replacement ( so it might likely stay in Linux mode all the time).
I have one and that's precisely how it feels at its best and how I use it permanently. I've squeezed down the Android partition to minimum and it stays in Sailfish. MY fingers are crossed that when Sailfish 3 appears for Gemini at the end of 2018 I will be able to get rid of the Android partition completely.