Hmm, I think that I ran across it after bumping into Nicky Case’s work, such as the game exploring trust. Seeing one of Nicky’s talks had me interested in systems thinking, and I believe one thing led me to another which led me to the comic in question (or the other way around). This would have been closer to a year ago than not.
The style was kind of like using communication UIs to explore them at a conceptual and design level, sort of like Scott McCloud’s Understanding Comics. Though I don’t remember if it had a character walking throughout.
But it showed some examples of how different use cases were addressed in communication systems and raised questions about if they were done another way, and some considerations that might arise from that.
I think I may have left with the impression that the author may have been toward the beginning part of their career or the end of tertiary schooling and engaged in related research.