White color on the screen tends to yellow after iOS 15.6.1 update

Hello,I have iPhone 13 Pro. What I saw in the new iOS update was that the white color on the screen tends to yellow, I wanted to know if this is normal? And the other thing is that the brightness of the screen in 100% mode in version 15.6.1 is less than the brightness of the screen in previous versions. Is this also normal?

[Re-Titled by Moderator]