net-1994, thanks for your question!
The article you referenced has been updated to clarify which versions are supported for connecting to Microsoft 365 (and Office 365) services. The section titled, "Additional information about connectivity to Microsoft 365 services" states:
- The following versions of Project are supported for connecting to Microsoft 365 (and Office 365) services:
- Project Online Desktop Client
- Project Professional 2021 and Project Standard 2021
- Project Professional 2019 and Project Standard 2019
- Project Professional 2016 and Project Standard 2016
- The following versions of Visio are supported for connecting to Microsoft 365 (and Office 365) services:
- Visio desktop app that comes with a Visio Plan 2 subscription
- Visio LTSC Professional 2021 and Visio LTSC Standard 2021
- Visio Professional 2019 and Visio Standard 2019
- Visio Professional 2016 and Visio Standard 2016
- Microsoft 365 Team