>>3945914It’s been around for years. Sony did it first, then Samsung iirc. It’s quad colour filter array. I have one in my old phone or works well. It hasn’t trickled down to cameras yet.
Pic related. Can be used as in low res combining each 4 block of colour quickly or as high res Bayer, looking at the outlined part, there is still an alternating Bayer pattern across the sensor too