Earlier quoted context omitted.
Not sure if this is what you had in mind: Projected 2D views into a 3D "movie screen" environment is a feature of the Frame, per my understanding of their marketing, and of early reviewers' experiences. If you meant, "do they take 2D render frames from videogames and convert them into pseudo-3d or actual 3d where the user can tilt their head to see a different view INTO the 2D game's universe, e.g. see behind bushes…
I mean, you don't need to go THAT far, regular 3DTVs didn't have that capability. But the possibility is there for fixed-position 3D.
FWIW though, SteamVR already supports playing non-VR games on a "projected" display using any regular headset. It's not exclusive to the Frame, nor a future feature!