Hi kay,
Thank you for the update. I’m glad to hear that the steps appear to have worked.
Based on the screenshot you provided, the Access work or school page looks normal. I do not see any work or school account currently connected there. The page is only showing the option to add a work or school account, which is expected if no organizational account is connected to the device.
At this point, if you are able to sign in to your personal Microsoft account and access Microsoft 365 successfully, no further action should be needed from this screen.
Thank you again for your patience and for following the troubleshooting steps. Please let me know if the issue returns or if you run into any further sign-in problems.
Additionally, if you found the answer helpful, I truly appreciate that you can marking it as 'Yes'. This helps highlight the solution for others who may be searching for similar information in the community. Your contribution not only supports fellow users in finding the right guidance more quickly, but also helps build a more resourceful and collaborative space for everyone.
Have a wonderful day ahead.