How to see more Icons at the same time on Samsung Galaxy S7
Samsung offers the next best thing: a grid of smaller app icons, enabling you to cram more icons onto a single screen.
Step 1. Tap and hold an empty spot on your homescreen and you should see customization options including Screen Grid.
Step 2. Tap 4×4 for 16 apps, Tap 4×5 for 20 apps, or Tap 5×5 for 25 apps.