I'm not saying it's meant to be a primary device. I'm simply saying that just adding a keyboard adds a huge quality of life improvement, and the bigger size allows you to pack in more power whilst still being pocketable and portable.
Remember the "easy money" scene from Terminator 2[1]? Ever since I watched that as a kid, that form-factor has been my dream cyberdeck. As I grew older, I went on to own the HTC TyTN and the Nokia N900 - and loved them to bits - but I always felt constrained because of the ARM architecture and low specs. Like, you couldn't realistically brute-force any decent complexity passwords back then, and I bet the neither can the Flipper One with today's passwords.
After being bitten by the various limitations of compact ARM devices, I wanted to get my hands on one of those OQO pocket PCs that ran a full-fledged Windows XP, but never managed to try out. Also missed out on the Sony VAIO P-series. So when the first GPD Pocket came out, I jumped on to it straight away even though it was from some random unheard of company at the time. And I loved it, and haven't looked back since then. I finally had a decent, proper computer in my pocket.
So for me, a keyboard would be a bare minimum on a cyberdeck, and if it's got oodles of RAM and compute, that's even better. And the newer GPDs have also been able to play AAA games on the go, like Cyberpunk 2077, and I think that is super cool.
[1] https://www.youtube.com/watch?v=yB82FNPoiPM
