It’s not a pre built PC, it’s a gaming console that can also be a PC, if needed. That’s how the steam deck is marketed, that’s how the previous steamos PC was marketed, and clearly Lenovo thinks the marketing will work. A unified simple introduction to PC gaming as cheap as any console but with near infinite backwards compatibility is a pretty good sell to the normies who have nothing but marginal upgrades to look forward to in the console space.
That was literally every instance of employment your parents and their parents and so on did.