Okay, maybe I'm missing something here but I can't seem to get HDR playing on my M1 Pro 16" display when using the Apple TV app. For example I own Endgame, it says it's 4k HDR, but when I play it it doesn't look any better than SDR. I know that 4k HDR is only available when streaming, not downloaded. I don't have the 'optimize video while on battery' switch enabled. When I play HDR clips of Endgame and others on YouTube you can see HDR kicking in, no mistake. Any ideas?