different panels are already available on the Samsung device ex works. further panels can be downloaded from the Galaxy Store for free/charge. here you can find panels such as a calendar panel, direct dial panel or calculator panel. standard side panels on the Samsung device include

Android 10 (One UI 2.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Display
Step 3:  Tap on  Edge screen
Step 4:  Tap on  Edge panels
Step 5:  Enable or disable desired  panels
  1. Open the Settings
  2. Tap on Display
  3. Tap on Edge screen
  4. Tap on Edge panels
  5. Enable or disable desired panels

Samsung Instructions