Depending on your device, the Settings app might call this feature 'Display over other apps,' 'Draw over other apps,' or ...

For example, certain games might create a highlight ... Statistics will enable a permanent overlay in the corner of your display, showing off information including the current frame rate, GPU ...

Usually, this overlay appears alone ... now a handful of suggestions that sit above the text field. You can see an example of this in the gallery below. This new addition and how it works is ...