I understand your confusion regarding Microsoft 365 and Office 365 in the context of BigFix. The fixlets you’ve come across are primarily for Office 365. It’s important to note that Microsoft has transitioned to a different update model called “Click to Run” for Office applications, which includes Microsoft 365 apps. This new model has its own update mechanism and is distinct from the traditional MSI/EXE-based updates used in legacy Office versions like 2010, 2013, and 2016.
While BigFix does offer some fixlets and functionality related to Office 365, they might not directly apply to Microsoft 365. To manage automatic updates and policies for Microsoft 365, it’s usually recommended to use Group Policy Objects (GPO) for granular control. Microsoft has been actively promoting centralized control over patching, especially for Windows 10 and 11, so GPO settings are essential for managing updates effectively.
I hope this clarifies the distinction between the two and helps you plan your installation accordingly.