We put a bed with too many cabinets at this end of the room, now what to put at the other end. I know! A toilet. Right there in the center facing the bed to help maintain eye contact!
I assumed it was for some sort of medical care, The picture with the fridges has what looks like a monitor on an arm to the right. It reminded me of something you'd see attached to an EKG or heart monitor something. I bet the fridges had medicine in them at one point.
People build out nice medical rooms in their homes if they/their family needs consistent medical care and they have money, that's probably what happened.
It's definitely a medical room like the other commentor said. Most likely for somebody with long term limited mobility. Everything they need within 5 minutes of slow moving. I've had relatives who would have lived in rooms like this if they could have.