So it isn't system wide
yet since this is what I get from another new account on the same machine
$ /Library/Application\ Support/Microsoft/MAU2.0/Microsoft\ AutoUpdate.app/Contents/MacOS/msupdate --config
Checking configuration...
{
AutoUpdateVersion = "4.0.18061000";
ChannelName = Production;
HowToCheck = AutomaticCheck;
LastCheckForUpdates = "Jun 26, 2018 at 2:37:43 PM";