I was surprised and confused about this, specially because I take certain care on the screenshots I paste on technical docs everyday, using PNG and a quantizer

I was surprised and confused about this, specially because I take certain care on the screenshots I paste on technical docs everyday, using PNG and a quantizer to reduce color depth. But on second read I think we're making a mistake because we work on a different domain. I think the article exclusively refers to images produced I'm the workflow of video/CGI/3D rendering and generation for the motion films/multimedia industry. And there it can probably make sense to use a format like that, same as when I use a DNG or similar for storage of my photos. I think when he said "screen-grab" he wasn't referring to an screenshot of a computer app or desktop, but to a frame of a video or something similar.