Source – twitter.com
The company's experiment was noticed by Tommy Haymas and shared the screenshot on Twitter.
Google tests the display of popular queries on the Google Search page. Before entering his query into mobile search, the user sees a block with trending queries of other users.

However, users can opt-out of these popular searches in the settings.
To do this, in the Google Search App, you need to go to Google Now, click the menu and select "Settings", and in them "Autocomplete". The item "Show popular search queries" is disabled there.