We can choose to automatically download available updates to the Huawei smartphone over a WiFi network, which will only download
the update, not install it directly.

Android 10 | EMUI 10.0
Step 1:  Open the  Settings
Step 2:  Tap on  System & updates
Step 3:  Tap on  Software update
Step 4:  Open the  Settings
Step 5:  Enable or disable  Auto-download over Wi-Fi
  1. Open the Settings
  2. Tap on System & updates
  3. Tap on Software update
  4. Open the Settings
  5. Enable or disable Auto-download over Wi-Fi

Huawei Instructions