With an official eShop copy, your 60-hour save file is automatically backed up to the cloud (with a Nintendo Switch Online subscription). If your console breaks or you buy an OLED model, your Pikmin progress is safe. A jailbroken Switch running XCI files cannot use cloud saves, and local save corruption is common.
The Nintendo Switch offers the perfect platform for Pikmin 4, with its:
This method is free, fast, and 100% legal. You do not need to find a separate "update NSP."
Using unofficial sources for "free" games exposes your console to several dangers: San Francisco Bicycle Rentals Permanent Console Ban:
: A free demo is available on the eShop, allowing you to transfer save data to the full version.