Hi Wesley Jones,
Thank you for posting your question in the Microsoft Q&A forum.
This requirement disabling spell check in Word so that users cannot turn it back on is related to policy enforcement via Group Policy (GPO) or Microsoft Intune. Since your devices are now managed through Intune, the best approach is to configure this setting using Intune policies.
As a forum moderator, I don’t have the appropriate tools to provide step-by-step implementation for your specific environment. To get the exact configuration steps and ensure the policy is applied correctly, I recommend raising a support ticket with the Microsoft Intune Support team. They can assist you in creating and deploying the appropriate policy to enforce this setting across all managed devices.
The Global Admin should create a service request with Microsoft support to get advanced technical assistance and diagnostics. For detailed instructions on how to get support, please refer to Get support - Microsoft 365 admin.
Please let me know if you need guidance on how to submit the ticket or navigate the Intune portal.
Apologies for any inconvenience caused by this redirection, but to ensure you get the most effective and timely assistance this is the best option I could offer.
Thank you again for your time and understanding. While this initial response may not resolve the issue immediately, gathering these details will help me assist you more effectively. I appreciate your patience and look forward to your response.
Wishing you and your family a joyful holiday season and a prosperous New Year.
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