From my experience, Microsoft wants you to move to a Microsoft 365 subscription. As an example, 6-7 months ago an update made Outlook 2016 clients fail to connect to the Outlook servers. You had to explicitly set an update (its KB escapes me at the moment) to make it connect again.
There are other issues as well, Onedrive, Office 2016 and Windows 11 combination has problems - Word and Excel crashes with no rhyme or reason, some documents which were not shared ask for credentials for accessing and so on.
Also there is the fact that they declared that 2016 and 2019 won't be eligible for connecting to Microsoft 365 services after October 2023 (https://learn.microsoft.com/en-us/deployoffice/endofsupport/...). So there is a clock ticking if you are using those versions of Office.
There are other issues as well, Onedrive, Office 2016 and Windows 11 combination has problems - Word and Excel crashes with no rhyme or reason, some documents which were not shared ask for credentials for accessing and so on.
Also there is the fact that they declared that 2016 and 2019 won't be eligible for connecting to Microsoft 365 services after October 2023 (https://learn.microsoft.com/en-us/deployoffice/endofsupport/...). So there is a clock ticking if you are using those versions of Office.