A few years back my sister and her 20 year old daughter (who has a mild form of autism) went to Japan.When they came back my niece,who like many with autism can become fascinated by the strangest things (think "Rain Man"),came home with photo after photo of the toilet that was in their room.It was really fancy...appearing to be almost nuclear powered.It had lights and buttons...strange,to say the least.
Those Russkie toilets don’t look too bad ,, at least the back wall is close enough to the hole that you can lean against it when you squat.
More common than that though is to have what to us would be the bottom half of a standard American toilet with a bucket provided to flush with..