With "only" 16gb of ram, a relatively meagre 8 core 6800 series APU, and small screen it wouldn't make sense for most software developer workloads, and because of the attached controller(s) it's not super portable so not great for content consumption.
Other than gamers, who likely don't even care that the steam deck runs linux (and in fact are hindered by it in some ways) is there a group you can imagine that would appreciate preinstalled linux so much that the steam deck makes sense over the surface pro or even a framework?
Of course i tinkered with it. Steam doesn't care and gives you lots of options. From installing Windows on the go to a sd card, to emulation software, to a full linux desktop environment. This is almost pure freedom, but it works far from perfect and is also not the intention. It's a superb tinker device. You can almost mod it to anything, overspec it, put it to other uses, etc. It's your call. It is like if Steam says "Hey you do you, go and have fun. We will not officially support it, but if you want to go ahead".
All I can see right now is that it has a battery bump that people might object to.
My goals with any device is to be as slim and as vanilla Android as possible, which means Samsung can go to hell.
A friend said he liked the OnePlus tablet.