If you are taking a screenshot on most iPhones, simultaneously press the Power Button + Volume Up Button and then quickly release.
You should be able to find the screenshot in your “photos” app.
If you are taking a screenshot on most Androids, simultaneously press the Power Button + Volume DOWN Button and then quickly release.
You should be able to find the screenshot in your “Google Photos” app or your phone’s “Photo Gallery” app.
If you are taking a screenshot on a Mac, click simultaneously click the Command + Shift + 3
You should be able to find the screenshot in your “recents” folder in Finder.
On a PC, simultaneously click the Windows + Shift + s
You should be able to find the screenshot in your “pictures” folder in File Explorer.