Hi- Appreciate the confirmation from an upgraded Opera version, chromium version, and different Internet browser product.
I'm not that technical, but my sense is the HTML elements that support the properties, layout, and styles for the new Bing search box has changed significantly requiring the other Internet browser products to update their application(s) in order to display the Bing search engine properly.
Hopefully one of the Opera Moderators can weigh in on this issue soon.
Thanks!