Iphone 11 pro front camera question

Hi everyone

So I noticed there is a dotted white line on iPhone 11 pro max selfie camera and is appearing on photos as well
Basically it perforated the photo as how to make it square
Does anyone know how to turn this feature off?
PS: it is not an issue with the camera as it is a software line
It is not Grid feature as grid is off and grid is making 4 lines across the screen
Thank you

Can you post an example?