We can remember visited websites on the Xiaomi smartphone by creating a bookmark in the browser-app. A bookmark can be removed in the same way it has been added.

Android 10 (MIUI 12.0)
Step 1:  Open the  Mi Browser app
Step 2:  Tap on  Add/remove bookmark
  1. Open the Mi Browser app
  2. Tap on Add/remove bookmark

Xiaomi Instructions