It is for normal compressed video. 8bit 4:2:0. However cameras capture at higher color quality. 10bit 4:2:2. This for the purpose of color grading where the cameras shot in LOG profile where colorgrading is needed to get a good look. 10bit 4:2:0 is supported in many GPUs but that has lower color information and many cameras do only 4:2:2 and not 4:2:0 chroma subsampling. This difference is not much until you start colorgrade you videos. Then the colors can get strange and create artifacts that you don’t want.
It is for normal compressed video. 8bit 4:2:0. However cameras capture at higher color quality. 10bit 4:2:2. This for the purpose of color grading where the cameras shot in LOG profile where colorgrading is needed to get a good look. 10bit 4:2:0 is supported in many GPUs but that has lower color information and many cameras do only 4:2:2 and not 4:2:0 chroma subsampling. This difference is not much until you start colorgrade you videos. Then the colors can get strange and create artifacts that you don’t want.