Thanks for pointing that out. I knew something was off, but didn’t pick up on that. How weird!
https://www.atoptics.co.uk/fz684.htm
It is possible to get bent “glitter paths” as you see at the link above. The image on the right is a computer simulation. It would probably require a very unusual wave pattern to produce the path of the one at the top of the original post.
See my post #11 if you missed it.