This is a pretty common effect. So common that I think when I was done, I was reminded of intro videos of 1970’s variety shows. I have no explanation beyond that.
I started this after the unfolding video because I wanted to see if there was an easier way to achieve what I had with the unfolding video. The “Card Dance” effect kept coming up in searches, but it wasn’t quite what I wanted. At least I know that it exists, and what it can do with it’s most basic settings.
I also found this YouTube video by Teach Tutorials Now to be helpful in a lot of ways (although I wish folks would either narrate or if not, allow their cursor to be recorded with the video).
I used the Card Dance effect here, with a screenshot from the Elder Scrolls Online.