If you see a download listed as “500 MB,” it is fake. The Golf update alone is over 1.8 GB.
In the Nintendo Switch "scene," games are usually found in two primary formats: Nintendo Switch Sports NSP XCI -Update- -eShop-
The title screen loaded. Music—upbeat, synthesized, aggressively cheerful—filled the room. No error codes. No "Connection Failed." If you see a download listed as “500 MB,” it is fake