Start with the Microsoft app that gets the first signal
Use Outlook when the workflow starts from an email or meeting, OneDrive when it starts from a file, and Excel when a row or tracker update matters.
This page is most useful when the same workflow crosses those boundaries and you want the shared setup path first.
When the suite view matters
Teams usually feel the gap when a mailbox update needs a file check, a spreadsheet change needs a reminder, or a meeting change should update another system. You usually notice it in flows like Choose the right Microsoft app and Keep email and calendar work together.
What setup actually covers
One Microsoft setup path covers the suite. That keeps the connection simpler while still letting each app do the job it already does well.
This provider needs a more guided setup than the built-in app pages. Follow the documented steps, then test the exact workflow you care about from end to end.