This looks like a volume license or MSDN-type image, not the retail or Office 365 version.
Office Professional Plus 2016 remains a staple for many businesses because it was one of the last versions available via a "one-time purchase" volume license before Microsoft shifted heavily toward the Microsoft 365 subscription model. It includes: Word, Excel, and PowerPoint Outlook and OneNote Publisher and Access Skype for Business Why the "Updated" Version Matters swdvd5officeprofessionalplus2016w64english updated