Here is an article that might help those tgatvare having issues with their Pixel. Not every Pixel and Pixel XL smartphone will have these issues, and in fact, it is more than likely that you won’t come across any of these problems at all.
http://www.androidauthority.com/problems-pixel-pixel-xl-fix-734560/
http://www.androidauthority.com/problems-pixel-pixel-xl-fix-734560/