Super Mario Party was not up to their content standards—the minigames were good, but there were only 4 boards, and they were both tiny and dull. Animal Crossing is a mixed bag—it has stuff previous entries don't, and is missing a lot that previous entries contained. But that might have gotten derailed due to Covid. The Mario Golf game that just came out supposedly has minimal content too, but I haven't played it.

On the other hand, it's not universal—New Pokémon Snap is a sequel to a game that could be completed in ~5 hours, and is absolutely filled with content.