Here is how to perform a factory reset on Google Pixel under Android 8 Oreo. The steps differ from the earlier tutorials because of changes in Android 8.0.
Android 8 Oreo
New Useful Features And Changes In Android 8 Oreo
Here are the changes in Android 8.0 Oreo comparing to Android 7.1 Nougat that I like most of all. Many of them are very simple to implement, some features I have been using for years on CyanogenMod and Lineage OS, but nevertheless it is cool to see them in Oreo on my Google Pixel.