Itās the lack of decent auto white-balance.
Also, thereās no mention of the colour reproduction accuracyā¦itās not just the web cam. You need to consider the display as well.
What your eyes perceived is a compounded output from the webcam AND the display panel, in conjunction with your ambient lighting conditions.
So technically, " Camera shows extreme red hue" (when talking about the Framework laptop webcam) is incorrect, as web cam (and other sensors) are not for displaying / reproducing colours; The web cam does not āshowā thingsā¦it interpret photons wavelengths and encode that digitally to represent the colours that it perceived.
In short, there are at least two things to calibrate; The display panel, and the web cam white balance algorithm to match its environment.