Without a way to get more chargers in it or add your own at least, this is a gimmick at best. So i wouldn't waste time on it.
To be clear, i am surrounded by fast chargers, but the car navigation sees the closest one at over 25km.
Stranger even, if i search for the address of exactly the charger, or by name like 'Tesla XYZ' the nav does find it and shows the charger card...
Edit: If i search for an address that is, if i do a search for chargers (nearby, near start, near end) it does not find it.