For me it’s the scale and perspective that stood out first. Both people are the same size on-screen but the one on the right is also supposed to be closer so they’re actually huge, but they also have a tiny chair. Both chairs are also pointed away from the TV which is as big as a person, but they’re also somehow not facing each other so the closer person still has to turn around. The seat on the left would have to be pushed right up against the wall but they somehow managed to fit a lamp behind it too.

It just feels very strange as someone with first-hand experience of 3d space.