Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Ok, is not an issue: my Office 2016 installation it is a "Click to Run" (C2R) version, and this version is not updated via WSUS.
To identify if Office 2016 is C2R or MSI based, you need to look into File, Account in any Office application.
If (like mine) you see an "Update Option" item it is a C2R installation; otherwise, if that option is missing and you see only the "About" item then your installation it is a "MSI" based installation.
Thank you anyway.