To take a screenshot on an Xiaomi Mi 12 Pro 5G phone, you must press the Power key and the Volume down button at the same time.
For Xiaomi phones, you can call up a quick access menu that has a special icon to take a screenshot.
As a result, the screenshot will be placed in the gallery. After that, you can use the image to share it on social networks, instant messengers, or keep it as a photo.