Installing or updating the Teams app for education users across supported platforms
Dear Mr. Pittman
Good day and hope you are doing fine
Thanks for sharing the above query in Microsoft forum community, pleasure to assist.
I understand you're having trouble finding the option to disconnect the work or school account that you no longer need and the option to do so is not available, in some cases, the account might be linked in "Access Work or School" accounts, preventing the disconnect option from appearing
Before we involve our online technical team to connect remotely with you, could you please first perform below steps to see if you can disconnect the work/school account.
-> Please try to disconnect your MS Account temporarily from Settings > Accounts > Your info > Sign in using a local account instead > Then just fill up the info needed to create the local account.
Once done go back to Settings > Accounts > Access work or school. See if you can disconnect it now.
Lastly, reconnect back your MS Account under Settings > Accounts > Your info > Sign in using a MS Account instead
Reference: Can't remove a Work or School account from Windows 10 | Microsoft Learn
To get Microsoft remote interaction, please use below steps to raise a service request with our technical team to connect with you remotely, as they have higher permission to connect remotely compared to us in Microsoft forum community,
As an organization admin, you can also raise a service request to our online channel through the O365 admin center if you have the permissions or request your admin to raise one on your behalf. A support agent can further connect with you remotely, for further troubleshooting Get support for Microsoft 365 for business -- Online support. If you need guidance on how to find your admin, see How do I find my Microsoft 365 admin? - Microsoft Support
In case of any further query, i will be on standby to further assist.
Thanks so much for your time, have a great weekend.