For those looking at the "XCI DLC" side of the market, the represents the most complete, all-in-one package available. It contains the base game, the narrative-concluding Reunion of Memories expansion, and all cosmetic items, wrapped in a format that is easy to manage for preservationists.
This article discusses the technical format for preservation and educational purposes. Users should always own a legal copy of the game before downloading digital backups. ONE PIECE ODYSSEY Deluxe Edition Switch XCI DLC