So I am aware that LG has had this history of having a green tint on your screen when you tilt the top towards you. I have the same issue with my base iPhone 17. While reading the posts here, I checked again. It seemed like I had very a bad case but it wasn't the case when I initially checked. I removed the screen protector and checked again - apparently my screen protector was really amplifying it.
With protector - https://streamable.com/9zh95w
Without - https://streamable.com/5oiqa0
With protector - https://streamable.com/9zh95w
Without - https://streamable.com/5oiqa0