@Mytoast Admin Thanks for posting in our Q&A.
In addition to a license for Intune, one of the following subscriptions that include a license is needed for Windows Update for Business deployment service:
Windows 10/11 Enterprise E3 or E5 (included in Microsoft 365 F3, E3, or E5)
Windows 10/11 Education A3 or A5 (included in Microsoft 365 A3 or A5)
Windows Virtual Desktop Access E3 or E5
Microsoft 365 Business PremiumHere
Here is the prerequisites before updating windows via intune.
https://learn.microsoft.com/en-us/mem/intune/protect/windows-10-feature-updates#prerequisites
Hope it will help.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.