There is an asterisk for a reason but apparently, this game is next-gen only. It's not possible on the regular X1 or X1X apparently.
No, it's an Xbox Series X console exclusive. The gameplay mechanics we're creating for The Medium can be fully realized only on a next-gen hardware. The game simply couldn't work the same way on current-gen platforms.— The Medium Game (@TheMediumGame) May 8, 2020
Has to be pretty CPU intensive for the X1X not to be able to run it.