I recommend you plan to purchase a dedicated charger and carry the Ford Mobile Charge Cord in the vehicle. Many Mach E owners have tried using the Mobile Charge Cord that comes with the vehicle as their primary charger (EVSE). Unfortunately, they are not holding up well in daily use. You can either wire a 15-40 plug for versatility or have the charger hard-wired.
Also: The Ford Charge Station Pro can be down-rated to charge on smaller circuits, so the 100A is not an absolute necessity. Of course, if you can install a 100A circuit I recommend it.