When managing your backup library, the files are categorized by unique identifiers derived from the game's Title ID.

If you don't want to deal with modded consoles or shady downloads:

was released, offering 4K/60FPS and exclusive content, which can be acquired via an Upgrade Pack for existing owners 3. Installation Guide (NSP/DLC Management)

If you specifically want just Overcooked 2 content, the Gourmet Edition includes the base game, all four major DLC packs (Surf 'n' Turf, Campfire Cook Off, Night of the Hangry Horde, and Carnival of Chaos), and the Too Many Cooks pack. This is available digitally on the Nintendo eShop and provides the full Overcooked 2 experience without the additional first-game content.

Queue and install all individual DLC NSP files (Surf 'n' Turf, Campfire Cook Off, etc.).