Hi @IsraelJimenezV-1919 ,
What kind of guest account you're trying to create? Is this a temporary guest account or permanent guest account for each PC?
As far as I know the Office 365 license usually account-based activation for per user. Based on your description, it seems taht you're trying to find the device-based license, I suggest you refer to this support article, if you want to use the device-based license for Microsoft 365, "The Windows client device on which Microsoft 365 Apps for enterprise is installed must be Azure Active Directory (Azure AD) joined or hybrid Azure AD joined." :
https://learn.microsoft.com/en-us/deployoffice/device-based-licensing
Just checking in to see if the information was helpful. Please let us know if you would like further assistance.
If the response is helpful, please click "Accept Answer" and upvote it.
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.