Look at the first picture in the carrousel after the video; and look closely at the white/green checkerboard squares.

Theyre messed up in a way that would only make sense if the image were AI generated because that pattern is trivially easy for a human to create but difficult for AI to get right.

An image or two afterwards has something strange with a table intersecting a window ledge too. It looks as if the AI attempted to do two images in one (like you see in some pictures of home designs). So I suspect all the images were AI generated but some more effectively than others.