Only once have I seen anything like this. The room had a bathroom door, but also a giant hole cut out in the wall so that everyone in the room could peer into the bathroom for some reason. We demanded a different room with a complete wall separating the bathroom and got one (a nicer one at their expense too).
If you want to share a room get a bed in a hostel. Is sharing a room with strangers - or worse work colleagues - really that common in the US?
What do you do with the bed? Or are you happy lying asleep next to a stranger , but not having a shower in sight (even if the shower was really open to the room which I can’t think I’ve ever seen)