Microsoft Bing started to show Explore Further option recommendation in February in textual & link form. Now Bing is testing the same in Graphical way.
Here is another screenshot attached shared by Frank Sandtmann, A German SEO Consultant, shared this to Barry Schwartz:
I find it quite remarkable that they are displaying 4 results, which are completely independent of the original organic result (#1). None of those domains was present on the first SERP of the original search term (“vegan caramel”), so one might question, why they have been chosen.
Last month it is seen that Bing showing explore this page in the search results. Bing is becoming more interactive now.