[chx]

Airbnb traditionall had three, now four "Home types": Entire place, Private room (Have your own room and share some common spaces), Hotel room, Shared room. The entire place will (almost always) come with your own bathroom and kitchen and living room etc. It's an entire place, after all.

A private room typically means you get your own bedroom but there are others living in the same home, maybe the owner, maybe other guests. Living room, kitchen are shared. The question is whether you also get a bathroom for your own use or not. This is displayed even in the listing (4 guests · 1 bedroom · 1 bed · 1 shared bath vs 2 guests · 1 bedroom · 1 bed · 1 private bath) but you are unable to filter on it. They understand this detail is important enough to put it in the listing but you still can't filter on it.

And the reason this matters, well, that should be pretty evident: multiple strangers can be in a kitchen or a living at the same time but not in a bathroom. A shared bathroom is a botttleneck in the morning and an overall pain in the neck to be honest. And in some places the private room-private bath combo is by far the best value.