Display brighter-than-white color on Apple devices
Apple did a clever thing with HDR content where it can appear amongst other non-HDR content, and only the part of the screen displaying the HDR content is in HDR. But in practice it looks really bad and I hate every time I'm scrolling Instagram and an HDR video appears in my feed. It blows my eyes out and then the rest of my screen looks gray and muted for a few seconds until I get the HDR content off my screen.