For some reason, all images on my system suddenly look washed out? At first I thought I accidentally changed my monitor's settings but I opened my laptop and I can see the same issue there. What could be causing this?

Can you share an image of how it looks like?

HDR enabled accidentally?

night light enabled on windows? https://support.microsoft.com/en-us/windows/set-your-display-for-night-time-in-windows-18fe903a-e0a1-8326-4c68-fd23d7aaf136

Sounds like HDR getting enabled

Similiar thing happened to me once. I just washed my eyes.😄