I expect we’ll see it in a smallish community like key west first where bussing in service people will become impossible. But maybe they’ll start building employee dorms and bus people in for their shifts (x days on, y days off). Who knows.
No one knows where the breaking point is, only that there is one.
If you look at feudal England this is basically what happened - the rich landowner class provided servants' quarters for their employees.
Of course that crushes job mobility, because you can't leave your job without losing your housing...
After college I had a friend working at in the town of Lake Louise Alberta. This is located in a national park and the number of homes are extremely limited and very expensive.
Visiting my friend they game me the tour of the house. It was a three bedroom 2 bath townhouse with 15 people living in it. 4 beds per room upstairs, and 3 people in the basement.
All the people worked at various retail shops in the village. (Not at the chateau) Making minimum wage.
This is a special situation. They are specifically trying to limit the supply of housing in Banff to limit the environmental impact.