If you prefer using a PC, NS USB Loader can push the update file from your computer to the Switch via a USB-C cable. Game Overview
An NSP (Nintendo Submission Package) is the standard format for digital games on the Switch. When you see "[Update]" in a file name, it refers to a supplemental NSP that contains only the newest patches and features. The initial release file. Neon White Switch NSP [Update] (eShop)
Use tools like Tinfoil or Gold Leaf to install the update NSP directly from your SD card. If you prefer using a PC, NS USB
Must be installed on top of the base game to work. How to Install the Update If you prefer using a PC