Qt 6.10 and Qt 6.11 development now support Wayland's color-management-v1 in place of their former usage of the experimental xx-color-management protocol. It took five years and until just this past February for the Wayland color management and HDR protocol to be merged upstream . And then in the time since for the Qt developers to ensure their color-management-v1 implementation was up to par.
The color-management-v1 protocol is detailed at Wayland.app for those wondering any of the specifics.
This merge yesterday landed the color-management-v1 in Qt while this merge cherry-picked it for Qt 6.10. This should be found then for the upcoming Qt 6.10.1 point release of this current toolkit stable series.