If auto-align is activated on your Huawei device, empty spaces on your home screen will be filled automatically after deleting one app by aligning the apps anew.

Android 10 (EMUI 10.0)
Step 1:  Open the  settings
Step 2:  Tap on  Home screen & wallpaper
Step 3:  Tap on  Home screen settings
Step 4:  Activate or deactivate  Auto-align
  1. Open the settings
  2. Tap on Home screen & wallpaper
  3. Tap on Home screen settings
  4. Activate or deactivate Auto-align

Huawei Instructions