So I just took advantage of this offer and bought Office 2021 for Mac. After uninstalling/deleting (as per Microsoft instructions) all remnants of Office 2019 on my Mac, I redeemed my new product key. But when I go to my Microsoft account and download/install Office 2021, I notice that I seem to end up with Office 2019 again installed (e.g., the About Word info still says "Retail License 2019").
After a bit of investigation, I see that my Microsoft account allows me to download and install each of my two most recent purchases -- Office 2019 and Office 2021 -- but either such download apparently downloads only the Office 2019 (v.16.60) installer. The download file for Office 2019 (Microsoft_Office_16.60.22041000_Installer.pkg) is 1.92 GB. The download file for Office 2021 (Microsoft_Office_16.60.22041000_BusinessPro_Installer.pkg) is 2.02 GB. Did Microsoft just take Office 2019 as is, add the Teams app, and then call it Office 2021, not even bothering to update the license year of the individual apps?
Can anyone with Office for Mac 2021 please confirm that their About info for Word, Excel, etc., still says "Retail License 2019" (and not 2021)?