According to the official Nintendo Switch 2 safety and instructions manual, the display comes with an "anti-scattering adhesive film" already applied. Its purpose is to prevent shards of glass from scattering in the rare event the screen is damaged. Essentially, it's a safety feature, not packaging or shipping material.

Nintendo tells users not to remove the protective film from the Switch 2's display, as it’s meant to stay there for the lifespan of the console.