: Downloading game updates from third-party sites falls into a legal gray area or is outright piracy depending on your local laws. The safest way to get updates is through the official Nintendo eShop servers using tools like NUS-FreeShop or USB Helper , which pull the files directly from Nintendo.
: This refers to the specific version of the game. v208 (Version 1.5.0) was a significant update that added support for the Nintendo Labo VR Kit and fixed various gameplay bugs.
: This indicates the NTSC-U region version of the game. Updates and DLC are region-locked, so this will only work if your base game is also the USA version.
Each segment of the filename tells you something specific about the data inside: