In what way doesn’t it work though?
QMS works exactly as intended, it’s prevents the black screen during frame rate changes.
It’s not an Apple TV software issue that prevents it from happening with dynamic range changes, that’s just the way QMS works full stop.
QMS eliminates bonks by using the VRR mechanism to change frame rates, allowing rapid, smooth changes from a nominal 60Hz rate to any media rate below it (down to 24Hz). HDMI 2.1b
www.hdmi.org
Initial reviews of the new Apple TV 4K highlighted that Apple will add support for Quick Media Switching Variable Refresh Rate (QMS VRR) via a...
www.macrumors.com