Tbh - and from having worked in a nursing home - none of the deaths are surprising.
The residents are mostly put in places depending on the time of the day and how able and responsive they are - so they get up for breakfast, have a morning activity or sleep, lunch, afternoon activity, watch telly, dinner, bed. Sometimes an outing. You're constantly moving people to a schedule, and most homes have more than one entrance.
I remember Dad, rather incongruously, had been moved to a room with an exercise class when he couldn't move his arms or legs.
The residents that do wander the corridors mostly have advanced dementia. The people that are dying die in their rooms.
I guess it's possible that someone might suddenly die in the tv lounge but that seems to be unusual!
The care homes are expensive and won't want relatives complaining that Dotty has lost a lot of weight as soon as she got there. It also - more cynically - suits them financially to keep residents going.