Beyond software updates, the Deluxe edition includes permanent gameplay enhancements that distinguish it from the original Wii U version: How to Update Pikmin 3 Deluxe | Nintendo Support
Fully resolves an issue where the screen would briefly turn off and on (flickering) during certain scenes, such as the start and end of an in-game day. It also includes general adjustments to improve gameplay stability on newer hardware. pikmin 3 deluxe switch nsp update updated
The Nintendo Support site and community reports from Reddit confirm that this patch fixes major stability and graphical issues: Beyond software updates