The Flipboard briefing on the Galaxy S7 (Edge) home screen shows you latest news about your favorite topics. To disable / turn off Flipboard briefing on Galaxy S7 (Edge), do as follows:
1. Make sure you are on the home screen (press the home button)
2. While on the home screen, use 2 fingers to pinch zoom out to enable the Home Screen Edit panel. (To customize home screen and open the modify panel, you can also press and hold your finger on an empty place on the home screen)
3. Now start swiping from left to the right, until you get to the Flipboard briefing screen on your Samsung Galaxy S7.
4. There you should see a slider button on the top of the screen. Simply toggle it off to disable briefing on Galaxy S7 (To turn on Flipboard briefing on S7 or S7 Edge, make sure to toggle the briefing button ON)