Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
the option to control updates, even partially, in 365 is so new that I have not heard of any way of selecting a specific version to work with.
The only thing I can think of is to contact MS, or Digital River (MS's "official" 3rd party installation file download site) to see if they can give you an installation file for the appropriate update version.
They have them, but getting the right one may be a bit of a challenge.
Digital River Support:
Apparently Digital River order numbers start with CNL#####
Microsoft Store- Phone 1-877-696-7786 or login at