I believe there is an accessibility setting for the visually impaired that puts a 4x2 grid of pressable squares on the phone screen, and users flip their phone

I believe there is an accessibility setting for the visually impaired that puts a 4x2 grid of pressable squares on the phone screen, and users flip their phone and use it in portrait mode. This might be iPhone only? I remember in the video for this that iPhone accessibility was much better.