I am unable to sign in to a School Managed Apple Account on my MacBook Air

Hi! Is anyone experiencing the following issue with managed school apple i.d.s or now called apple accounts?

I have a teacher who can not sign into their apple account on both her imac and macbook via settings. When trying to do so, it takes her to managed school id in google, she signs in with google credentials, and then it immediately returns to the settings screen and does not update the login. Fortunately, this teacher can sign in just fine on her iPad.

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Weirdly, when signing into her apple account via the web browser on these devices, it shows all 3 devices are connected even though she is technically not signed in via settings on her macbook and iMac.

Any help or assistance would be greatly appreciated!