Hey, I had a similar issue recently where my screen colors were dull and not accurate after an update. I stumbled upon this screen color test online
https://allcolorsscreen.com/windows-update and used it to check my display calibration. The test helped me identify the problem areas, and after tweaking the settings, the colors looked much more natural and vibrant again. It took some trial and error, but that tool made the process way easier and saved me a lot of frustration.
