Nintendo warns of new Switch OLED screen protector
This week in addition to the release of the Metroid Dread we also had the release of the refreshed Nintendo Switch marked by its OLED screen versus the LCD using the previous model.
So the new Nintendo Switch OLED comes with a discreet pre-installed screen protection (a film on the screen that is) with Nintendo warning not to be removed from users. It is an “Anti-Scattering Adhesive Film” that helps protect the OLED screen from both breaking into smaller pieces and scratching it and it is suggested not to be removed.

However, if someone wishes to place a tempered glass in their new Switch or a screensaver, they can do so by placing it on top of the existing one without any problem.
[via]