Back in April, Google began testing a new feature to show short videos in a carousel in the mobile search results. That carousel seemed to first only show YouTube videos, but now it is showing videos from TikTok and Instagram.
Here is what it looks like:
I tested this on numerous teams and most of the results were from TikTok. I saw only a couple with Instagram and I found none with YouTube videos.
In August, Google also had a snippet carousel for TikTok videos.
Forum discussion at Twitter.