Took me a little while and some confusion to figure out how to configure the notification settings for the default so that general users would not get unwanted notifications.
The trick is to be logged in to UiPath as an admin. Then navigate to the notifications options under your own user profile. Once you have the notifications panel open from your own user you will then have the option to alter the notification settings for any groups (including the default group).
Clicks: Personal User Icon (upper right) > Preferences > Notifications > Alerting Group Configuration > Default (group)