jiefang Why is there no smart Chinese typing?
Is this not a keyboard problem? Nothing OS comes with GBoard. Have you tried changing the language settings within the keyboard or using other apps?
jiefang I can’t clone the information in my old phone
Cloning information needs to be done when you first set up the phone like it prompts you to. Otherwise there are third party apps for some types of cloning.
jiefang the interface does not have a back setting
Unsure what you mean by a back setting? You mean you want to enable a button navigation instead of swipe gesture to go back? That’s in Settings > System > Gestures > System navigation