This seems to be a bug but could be a test where Google is displaying a large box of image results for queries by the searchers. This is not something new, but to display a lot of images for so many variations of the queries is not normal. So, this is potentially a Bug.
Screenshot By Neeraj Jivnani & Shameem Adhikarath
Google is now showing Image packs on all keywords, also on terms where it's not necessary at all! 🙌
— Neeraj Jivnani (@neerajjivnani) July 17, 2020
Recommendation: John Mueller Stated Search Is Not A Science
— Shameem Adhikarath (@shemiadhikarath) July 17, 2020