You can replace the launcher on the Shield with something else without ads, like
Projectivy, or Wolf Launcher. Can't do that on an Apple TV. Also you can load older versions of apps when a developer puts out a bad update that breaks things.
SDR is a
luminosity format. It has nothing to do with the number of pixel in an image (resolution). I do agree that was a bad chart because the terminology wasn't consistent between the two. It was a copy-paste low-effort job. Also one device seems to support more formats by having things listed more piecemeal compared to the other.