I've found a few different places online about places where there was a setting for blocking desktop notifications for ChromeOS. I've looked in these different places and don't see anything in device or user settings that would affect notifications. Is there still a control hiding somewhere to accomplish this or was it removed altogether?
As more of a background on it, an administrator started using a Chromebook and noticed that there multiple notifications that come up about "Your IT admin is allowing "application" to access your location" and asked if there was a way to block those notifications. Maybe blocking them is not possible for privacy concerns.
Devices > Chrome > Settings > Device> Notifications
Devices>Settings>User & Browser Settings>Content>Notifications
Devices>Chrome>Settings>Users & browsers>Notifications