Not just monitors but video players too.
Trying to play HDR content on a regular SDR screen is a mess.
If you rip an HDR version of a movie:
- VLC does nothing. It shows it as so dark it's unwatchable
- IINA shows it as brightness comparable to an SDR version of the movie, but with a weird green tint
- QuickTime is weirdly in-between, brighter than VLC but not as bright as an SDR version
- Infuse got fixed this year so that it plays HDR content to visually match the SDR version of the same content on a SDR screen (the only player I've found that can on Macs)
And if you want to convert your file in ffmpeg, good luck. I still haven't found the magic settings that reverses whatever entertainment studios are doing to translate their SDR into HDR. (The magic settings that Infuse has somehow figured out.) There's no flag or setting for it -- you have to input a bunch of custom values.