Apps that are no longer needed can be easily uninstalled to free up space on your Xiaomi smartphone, for example. Uninstalling will delete all associated data and cannot be restored.

Note: Apps can be uninstalled either from the home screen or from the settings.Several apps can be selected simultaneously.

Android 10 (MIUI 12.0)
Step 1:  Swipe  upwards  to open the app drawer
Step 2:  Tap and hold an  app
Step 3:  Tap on  Uninstall
Step 4:  Confirm with  Uninstall
  1. Swipe upwards to open the app drawer
  2. Tap and hold an app
  3. Tap on Uninstall
  4. Confirm with Uninstall

Xiaomi Instructions