how to take a screenshot on devices with android 11
On devices with android 11, hold the power button and then press the volume down button for 1-2 seconds.
Open the multi tasking panel which will reveal the screenshot button, hit that button to take a screenshot of the current page
Using the first or second method, the screenshot will be visible on the left lower corner as a thumbnail tap on it to edit it or share it or delete it
how to take a screenshot on devices with android 10
Same as on android 11 you can take a screenshot by holding the power button and press the volume down button.
Also you can hold the power button a Menu will appear on the top right of your screen with those icons (power down, restart, and screenshot) by using this last button you can take a screenshot, a notification will appear then to let you know that screenshot is captured and can be viewed, shared, edited or deleted.
how to take a screenshot on devices with old android < 10
You can hold the power button and home button for few seconds (1-2 seconds), the screenshot will be saved under photos on the gallery