In 2017, Google did a ton of testing of deploying rounded corners for its mobile search results design. Well, the test is back. Saad AK shared a couple of screen shots on Twitter of Google testing rounded borders around the search results in the mobile search results.
Here is a screenshot:
Here are more from Twitter:
Hi @rustybrick SIR,
I hope you are fine.
I think this design of Google SERPs (on Mobile) is new. pic.twitter.com/yNlZVRv8Dj
— Saad AK (@SaadAlikhan1994) July 12, 2021
Google is always testing, so here is one more to add to the list.
Forum discussion at Twitter.