just because the embedded computer on your fridge can run doom, doesn't make your fridge a console. Same reasoning with the steam deck - just because you can access the linux desktop underneath, doesn't mean the device was designed with that use case in mind.
>>eldais+(OP)
I can't connect my fridge to a keyboard, mouse and screen and seamlessly use it as a desktop.
I'm doing exactly that with a Steam Deck. I'll be going out of town for the next few week and instead of carrying a laptop to WFH, I'm just taking my SD and a keyboard with me.