Should you post the same content on every channel?

No, when each channel has a different job: the feed keeps the seasonal dish, the story keeps the daily menu and Google proves you are open. Pushing the same file to all of them at the same hour fails if one is cluttered and another is missing the hours. Note what people come to each place for: the menu, a booking, the address or what tonight feels like. A vertical reel is squashed into another network's square and neither the dish nor the neighbourhood can be read. One photo bank, three written uses: feed, story and listing, each with the fact that channel actually needs.