This video is a quick overview of the Photo Mode, available with The Witcher 3 Next-Gen Update v4.0. To activate Photo Mode press U on Keyboard or LS+RS on a Controller.
FULL GUIDE: https://vulkk.com/2022/12/14/how-to-a...
You cannot use Photo Mode during cutscenes, but you can use Photo Mode during combat. Activating it, will pause the game.
After you take a screenshot using Photo Mode, the image is automatically saved in the same folder where your local saves are. Here is the default location for Windows 10 and Windows 11:
C:\Users\YourAccountName\Documents\The Witcher 3\screenshots