Comparing a Pyra with a GPD Win is like comparing a car to a bicycle. I own a GPD Win, it is sitting on the shelf for days in a row because it just does not deliver what it promised.
The hardware is lackluster, the keyboard is downright unusable. The design is shoddy, in daily use it shows how the OS is forcibly shoehorned into components that were never designed for it. The support is laughable, reddit and facebook groups are places for amateurs to experiment and guess, without much guidance from the designers. Expandability (apart from SD cards, which have frequent read/write issues) is nil.
Using it as a portable gaming machine (the very thing it was geared towards) requires a lot of patience and a high frustration threshold. Resolving issues is guesswork and rather resemblems alchemy than analysis.
If you want a device that keeps you occupied and makes you wonder how quick design can churn out something, it's the thing for you. I want something that works, that is designed well, that will keep working for a couple of years. The higher price justifies that in any way. Feel free to copy this into all the reddit boards you know.
I'm going to sell te GPD Win again. You want it? Don't complain.