Hi @wilma I think the issue here is the source from where you retrieved the picture of the room. In the actual room, which I found doing a reverse image search on google, there is a large abstract painting on the wall. The publisher that provided the picture you used, which I guess is for some kind of business, replaced the painting with those blank canvases probably because they did not have the right to republish the artwork in their web page.
I don't know if you watch reality shows, but many times they blur images (like wall artwork, street signage) they do not have the right to broadcast, or perhaps logos for businesses they do not want to promote without getting paid. I notice this in many HGTV shows, and in the rare episodes of KUWTK that I have watched.
So the blank canvases were no one's choice of decor. Just an issue about reproducing the artwork that is actually on the wall. If you google your image, you can find a picture of the room that you posted with a large abstract painting on that wall.