Mine did the same thing. I went through all the settings. I can’t figure out how to fix it. The eye comfort shield is not on and only makes the color more tinted when you turn it on. The lock screen is not like this but the rest of the phone is after unlocking it. No matter what app I use it is still there. Makes watching TV on here like crap. Taking pictures, like crap! This update sucks!! Changed my fonts, settings, display! They need to fix this asap!!!
If you find an answer somewhere please let me know. I am in the same boat as you!