If you repacked the game, you can install the new NSP file on your Switch using your preferred method.
For users with a jailbroken Nintendo Switch, managing these files usually involves specific homebrew tools: overcooked 2 switch nsp update dlc repack
For security and console stability, it is recommended to only download official content through the Nintendo eShop. Modifying your console or using unofficial "repack" files can lead to a permanent ban of your console or Nintendo Account from online services. If you repacked the game, you can install