Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi CG
Please give some thought to getting an Office 365 subscription instead of the stand-alone version of office 2019 - at least until Office 2022 comes out in a few months. The stand-alone version of 2019 lacks all of the new features that 2022 will have. It seems like a waste to spend that much only to be 3 years behind on a brand new Mac. Why not subscribe monthly until the new version comes out and then buy the stand-alone? A LOT of new features have been introduced since 2019 was released.
Do not uninstall or remove Office 2011 from your old Mac. Office 2011 activation ended October 2017. If you attempt to re-use a previously activated product key, you will likely discover you can't. Occasionally someone gets a support person to give them a new key by calling, but that's rare. If you want to remove your name from the basic setup, go to Word > Preferences and change the user information there.
You should move the Microsoft User Data folder from your old Mac to the new one. It goes into the Documents folder. Outlook 2019 will look for your data on the first run. If you skip import on the first run, just use File > Import. Don't repeat the process, though, or you'll wind up with double everything. Once everything is imported, you can delete the old Microsoft User Data folder.