Google Pixel 3 users can take screenshots by pressing and holding the power button and volume up button at the same time for a few seconds. The screenshot will be saved to your device’s memory.
Press and hold the power button and volume down button at the same time. The screen will flash white and you’ll hear a camera shutter sound. A notification will pop up on your phone with a thumbnail of the screenshot. Tap on this notification to view your screenshot.
Google Pixel 3: How to Take a Screenshot
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