Also from the official Nintendo EU support page @ https://www.nintendo.co.uk/Support/Ninte...01195.html
Quote:Question..
There are black or bright dots on the Nintendo Switch screen that do not go away, or there are dark or light patches on the screen.
Applies to: Nintendo Switch
Answer...
Small numbers of stuck or dead pixels are a characteristic of LCD screens. These are normal and should not be considered a defect.