I have Slow Motion and Super slow Motion option on my S10.
Format much the same on the S7 but Mode rather than More.
Open the camera app on your Galaxy S7.
Tap on the “Mode” text at the bottom left corner of camera app.
Select “Slow motion” from the list of options.
Hit the red button to record video in slow motion.
See more here https://www.solvemix.com/index.php/en/android-smartphones/samsung-galaxy-s7-how-to-record-slow-motion-videos.html
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