This page of the guide answers the question whether there is a Photo Mode in Dying Light 2.
Photo Mode is one of the additions that have appeared frequently in various AAA titles. This feature makes it easy to take a good screenshot, and further enhance it by hiding the HUD or adding special effects and filters.
Unfortunately,, Dying Light 2 does not offer a built-in photo mode, but with the right character placement and a bit of creativity can lead to really good screenshots. If you want to further increase the quality of the photos taken, you can try changing the gamma and color settings.