Unlike the magnification function, the Magnifier window magnifies only a section of the screen and offers several settings such as magnification level, focus lock, or follow the typing focus.

To move the Magnifier window on the Samsung device, two fingers must be used.

Android 10 (One UI 2.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Accessibility
Step 3:  Tap on  Visibility enhancements
Step 4:  Enable or disable  Magnifier window
  1. Open the Settings
  2. Tap on Accessibility
  3. Tap on Visibility enhancements
  4. Enable or disable Magnifier window

Samsung Instructions