I thought it was 3D.

A further bit of a tangent, but anyway: what really strikes me is the choice of such an image to represent whatever they're trying to convey. It feels bland, and there's a kind of underlying sadness to it... the books, the small sculpture, the shelf, the desk... it all drags me down.

I'm pretty sure the "fakeness" is intentional. The image seems designed to appeal to a specific target audience (when I look at their 'AI erase/replace tool' example I get a clear idea).