Some key points to review before you move to Office 2019 for Windows:

• Office 2019 requires Windows 10 at a minimum on your device if you are a PC user
• Office 2019 does not come with OneNote 2019 – this will require the remove of office 2016 and then you have to reinstall onenote again after office 2019 is installed

The Windows version of Office 2019 is included in O365 if you are using that option.