Connect map version and purchasing Topo Maps.

Have just purchashed a Garmin Fenix 6S Pro Solar.   

Using Connect to plan a walk through France.  The Fennix came with maps.  Are these the maps that are shown in Connect Web/App?

If I pay for a Topo Map of France, will the I presume extra detail show-up in Connect Web and on the App? 

I have tried using BaseCamp for Mac, but have not had any luck connect to the Fenix.  Would the purchased Topo Map show up in Basecamp?

Thank you from a newbie.