At that price I just prefer getting a GPd WIn 2 for gaming and not something android limited, even if it's not a phone....
I know you love your Win2, and it is cool. For $700 though, I'd rather have a good $900 gaming phone. The idea of a gaming phone is that, for many of us, we are already taking our phones with us. Having to carry another device isn't the most ideal. I can use Geforce Now on my Mac to play all my Steam games, and soon enough it will be on my phone.
I also have LiquidSky and Playstation Now. Give me a good gaming phone with an attached controller, I see no need for a Windows machine in my pocket also. While having the Win2 will let me finally find some time for my older Windows games, I'm not really playing the older games when I am in front of my computer and don't miss them when I am away. It is why I sold my GPD-Win originally.
I love my Nintendo Switch (hell, wife and youngest daughter both have one also), but carrying it out of the house isn't convenient. I have to pack it in the case, bring the charger, power bank, etc. Once my phone can replace the Switch for gaming, I'll forgo the Switch also.
Besides, I also have a Surface Book 2 with a GTX1060, so I can play my modern games when I am visiting the in-laws or away for the weekend. The GPD-Win2 isn't for everyone. I can't see one in my life, but I can see a gaming phone.