@mattcen @xssfox @atoponce yes, I too went looking for the original toot that @xssfox posted (2021-07-05). The two animated QR codes are distinctly different: the recently posted one is a lower detail/resolution QR code, and has a lot more “dot shimmer” frame to frame around the figure to make it still decode, where as the @xssfox 2021 post is high resolution and all “dot adjustment” is within the figure and less obvious.
@ewenmcneill @mattcen @atoponce checking my backups and I can't find it, leading me to think I did all my work in my ~/Downloads folder (no unusual for me)