The filter you want to use is User Filters > User Attribute > Has assigned device and select the “Exclude Selected” check box

@Linda Weber Thank you for submitting your question to our community!  

@Scott-CCS is correct with the suggestion above. Additionally, you can add the location & student role to filter by. 

Thank you so much. I don’t think I realized this feature existed. Ya’ll might get tired of me...lol

@Linda Weber This one is not a “yelling in your face” obvious one, so I will let it slide this time. 

Just kidding, we are happy to help and support you in any way we can!