If it says anything, most 4k movies out right now have cgi rendered in 1080p and then upscaled. Also, most cameraing, even if recorded in 4k, is not focused to

If it says anything, most 4k movies out right now have cgi rendered in 1080p and then upscaled. Also, most cameraing, even if recorded in 4k, is not focused to 4k, but focused for 1080, so it's often fuzzy. Then some shots are more focused than others which is just annoying. Avengers: End Game is the first movie to render for 4k and recorded with 4k in mind, and I am uncertain if any movies have come after it meeting that spec yet, so atm 4k bluray is sadly a gimmick anyways.