Serif
𝕽𝖊𝖓𝖊𝖌𝖆𝖉𝖊 𝕬𝖓𝖌𝖊𝖑
Makes sense. Ignore the simple explanation of Cloud Save support and leap to some sort of co-op mode. I guess if the reverse were to happen, there would be panic of no Cloud Save support or something.
Previous brochures did not use the Switch Online logo for games that supported cloud save. TotK is listed as a single player game, so if the advertisement is true, at most the online functionality could be some item retrieval system like Legends Arceus or messages in bottles like Wind Waker HD. No co-op.