Info displays can be freely customised, remove the quick control screen display to reduce the chance of changing AF point position inadvertently
BRIAN SAYS… On most cameras, if the AF point selection button is pressed then the touchscreen is activated, making it possible for your nose to change the AF point location if the quick control screen is displayed. There are two ways to avoid this, disable the touch screen from the camera menu, or make sure that the quick control screen is not displayed. For the EOS 5D Mark IV it is possible to eliminate the quick control display from the available screen displays by configuring the options for the INFO button displays in the Set-up 3 menu.