According to the information of the patent, Vivo suggests either placing a camera on each corner of the screen, or placing dual cameras on the upper edges. And in the second case, there are two design options - the manufacturer suggests making one cutout for two cameras or for each of the cameras separately.
In addition to the location of the front cameras, the patent application shows the design of the back of the mobile device. In the upper left part of the rear panel there will be a vertically located unit of the main camera, consisting of three lenses and an LED flash. The only button on the left side of the device is supposed to launch the Google Assistant application, on the right side there will be power and volume buttons.