We have been using a tour of a university and for your accomodation part of the tour they had a "demo" home so it absolutely was entirely open plan and you could see almost everything. My dad asks the tour guide really loudly "Do the actual rooms come with partitions?" https://tour-guide-custom-flag01975.ampedpages.com/5-essential-elements-for-personalised-tour-guide-flag-59046902