Laptop HDR Monitoring

I couldn't find any instructions of how can we use the new function "Laptop
HDR Monitoring" in version 19. I've tried but it doesn't seems to work on my Mac. Any tips?

"Laptop HDR Monitoring" has been present for years, and is not new to v19. For example, here's a snapshot from March of the webpage advertising it https://web.archive.org/web/20240329121 ... e/whatsnew

You may refer to this guide from Dolby on how to set up your Mac with XDR display: https://professionalsupport.dolby.com/s ... uage=en_US

Can it be tone mapped to a monitor with less brightness like a MacBook Air, as FCP X does?

Following the instructions of the link, the option “display HDR on viewers if available” does not appear for me.

HDR grading on a non-HDR monitor is completely useless.