Upon checking, there is a planned preference for this in the future.

For questions regarding Guided Learning, you can contact NetSuite Training Team via this link
This process works great for full license users; however, Employee Center users do not have this option in their Preference settings. How do we remove the icon from their display?
To close the Help Panel and switch back to NetSuite, press the Esc key.
We know how to close down the window so users can process transaction in NetSuite.
We were able to remove the NetSuite Guided Learning icon/widget entirely for our full license users. It was a simple update to uncheck a box in their Preferences.
This is the icon I am referring to:

We cannot do the same thing with our Employee Center license users. There is no box to uncheck in their Preferences. This is a problem as we do not want these employees using NetSuite Guided Learning.