Arch Linux, fully updated. Issue started happening as of Plasma 5.21

When machine goes into "screen energy saving" mode, my color correction is reset. I believe this may have something to do with a session of some type, as all my Firefox Windows get reset to full screen on the primary monitor as well regardless of how they were configured before (I found an old bug related to the Firefox part here https://bugzilla.mozilla.org/show_bug.cgi?id=372650, but I believe this specific bug may be unrelated? But it's the closest I found).

I do have Redshift installed which has issues with color correction too, but this issue happens even when the software is not running.

I'm happy to make a bug report but it'd be nice to figure out more info first if anyone has troubleshooting ideas.

Apparently this is corrected in the master branch of colord-kde