This Week in Plasma: control of frame intensity and image sharpening - KDE Blogs

It was incorrect, it should be supported on 6.19, for supporting Hardware, only some Intel GPU including I believe APU.

It was easy to miss the information as my question was wrong in the first place. Forgot the Linux 6.19 merge window wasn’t done. link

Changed that to 6.19 in the post. Thanks!

Nice! I put a link to this into the TWiP post.

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Fixed! Thanks for noticing that, and sorry I got it wrong.

Now we need mspaint = kolourpaint