As soon as I received my Canon 5D Mark IV, I turned off the Wifi. I thought that it would not be very useful to me and that it would only serve to drain the batteries quickly. As I divide my work between studio and concerts, the WiFi did not seem very useful to me.
In the studio, the USB cable was perfect for working with tethered to the computer; in concerts, the WiFi also did not seem to be of great utility. But even so, one day, I decided to install the Canon Camera Connect application to at least find out how it works. Quickly the WiFI has become a fundamental tool in my work, both in the studio and in the concerts.