Google is testing a new button to add a note to the search results. This button is described as being much smaller and features an icon of a notebook with a plus sign within it. It's a part of the Notes in Google Search and Discover feature that was launched as a labs feature last November.

To add a note to Google Search results, users can utilize the new button that Google is testing. It is represented by a small icon resembling a notebook with a plus sign. By clicking on this button, users can add a note to the search results they are viewing.

The new note button that Google is testing is described as being much smaller than the older version. The new button simply has an icon of a notebook with a plus sign, whereas the older original version might have been larger or had a different design.

Despite some speculation that Notes in Google Search might go away this month, it appears that Google is not discontinuing the feature. Instead, they seem to be testing alternative buttons for it, indicating ongoing development and support for the Notes feature.