It looks like Google is testing thinner, 85 pixels less wide, knowledge panels in the Google Search results. Jason Barnard said the current/old knowledge panel on desktop search is 455 pixels wide. The new, thinner, version is 370 pixels wide.
Jason posted this screen shot comparing the two on Twitter:
I was able to replicate this, Google Chrome showed me the normal wider version and Safari showed me the thinner version:
A thinner version means shows four, instead of five, people also search for records and others.
Is thinner better here?
Forum discussion at Twitter.
