Put it wherever you want
How to Find Steam Screenshots on Your PC [Tutorial]
When an incredible moment happens in a game, the easiest way to capture it is to share it with your friends by taking a screenshot (if you’re not streaming). Taking a screenshot is easy, but it can be tricky to find where the capture is saved if you’re using Steam’s built-in tool.
You can find the Steam screenshots folder and change its location to a folder of your choice, making it easier to access.
Simply press F12 in a game to take a screenshot. Steam automatically saves screenshots to a specified folder. You will hear a soft clicking sound, almost like a camera shutter. A message will appear in the bottom right corner of the screen letting you know that a screenshot has been saved.