go to discuss.kde.org, give your feedback on this feature. maybe devs will consider improving it, maybe they will tell you about some way to configure it you don't know about. just keep cool attitude, kde devs are very open minded.

Just when they changed that I did go there and found some other users are complaining already. The responsible for HDR on KDE is just one person. He declared that this issue is a "feature" and pointed that we all are wrong. Even when people say that when people relly on a certain wrongly behavior that "wrongly behavior" is not a problem but a feature the guy give the middle finger to everyone and closed the request saying that everyone in the thread doen't know what HDR really are and every other platform implemented HDR wrong and KDE will not behave like that (in a nutshell).

That guy is an idiot. EVERYONE controls SDR detached of pure HDR but KDE. It'll fix SDR to your paper white setting and THERE'S NOTHING one can do. BECAUSE THAT GUY IS AN IDIOT!

If you want to read the original thread it's here:

https://bugs.kde.org/show_bug.cgi?id=499934 [External Link]

Other people opened other threads about the same thing again and again only to be dismissed.