I want to give them the benefit of the doubt and say perhaps it’s a deep freezer that is only opened occasionally, and I guess is pretty well sealed as long as it’s closed.
The kitchen appears to have one of those built-in fridges that matches the cabinets:
At least in Finland the washing machine (for washing clothes) is usually in the bathroom/shower room, like in the photo in this post.
Finns also have saunas in their home, which is awesome but not really standard anywhere else.