@Aneres11 - I am experiencing the same issue you had with the Pixel 8 Pro taking very blah / cool temp photos. I took photos of our dog and they are just not realistic in terms of color temp and overall color. I pulled out my iPhone 15PM and snapped a photo at the same time on both phones and the iPhone is clearly more color accurate. This is in an average lit room with warm lighting. The Pixel just looks bland and too cool.
I toggled the ultra HDR option in camera settings and it didn't really make a difference. Did you adjust any other settings to bring the life back into photos?
*Edit- I sent the photos to my wife thinking it may just be the screen display, nope. Photos are way too cool. Even last night when out to dinner the skin tones made us look way too pale.