I think some displays allow fast enough updates for that. But the early versions of the Divoom didn't have enough docs and/or had broken firmware and wouldn't show any custom gifs I sent it. But it's been working great for me for a few years now as a wall clock/weather display.

Finally got around to writing it about this yesterday, actually. https://ryanmpoe.com/2026-01-03-weather-pixel-art/

Happy coincidence, OP!