Not yet, it seems to be an open question. See: "The Mystery of the Missing Multicellular Prokaryotes" https://www.quantamagazine.org/the-mystery-of-the-missin

Not yet, it seems to be an open question. See: "The Mystery of the Missing Multicellular Prokaryotes" https://www.quantamagazine.org/the-mystery-of-the-missing-multicellular-prokaryotes-20240502/ https://www.quantamagazine.org/the-mystery-of-the-missing-mu...