Wanted to say, that i have the same issue, seems that using “Prefer color accuracy” in KDE fixed it for now.
My Laptop:
Framework 16, AMD Ryzen Ai 7 350, 32 GB RAM (1 ram-stick from framework), internal graphics and NVIDIA GeForce RTX 5070 extension module, CachyOS.
I’m new to that Linux and DIY-Thing, so i haven’t tried the other options for now, have to read more about that before. 
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This has landed in v6.19.6:
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Also backported to 6.18.16, and should be included by default in the first stable release of 7.0.
This fixed it on fedora with no ill effects. I cannot find an equivalent setting on Zorin since I am trying it out. Any ideas?