For a little more of privacy while surfing the web on the Huawei smartphone, we can enable the incognito or private mode, which darkens the layout and deletes the browsing history, cookies, or search history after closing all tabs automatically.

Android 10 | EMUI 10.0
Step 1:  Open the  Browser app
Step 2:  Open the  menu
Step 3:  Enable or disable  Private mode
  1. Open the Browser app
  2. Open the menu
  3. Enable or disable Private mode

Huawei Instructions