Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
OK
Spent more time looking around on the MS support website. My basic premiss - the MAU latest version is not the latest version everywhere on the MS website.
The MAU I have is 4.12 build "...901" but the one I'm looking for is 4.12 build "...700" - don't ask why it's a lower number - the first part is different so doesn't matter.
I finally found this version ...700 and it is located here.
Now support gave me other links and I found other links but they all had build ...901 and when I installed that it was not any different.
But this build ...700 must be the 4.12.0 that is being referred to under the MAU update entry.
Anyway now that it is installed there is no longer any updates showing for installation.
Next time a new version comes out - I'm running the latest right now 12.26 - so next version 12.27 we'll see if this still works.
Note that my manual download of the MAU didn't really fix the autoupdate problem. The MAU would not autoupdate to the newer version so it was a manual fix. It is most likely that the problem of not auto-updating is still there and I still need a fix.