Q: Is it possible to have the default map view as terrain, aerial or satellite?

You can change  the Google map view to any that Google has to offer “hybrid, road map, satellite (aerial), terrain”  The settings are under Experience/Map ,scroll to the map panel to see Map Type and use the pull down menu to change to which one you want as the default and then save changes.  For additional features , or to change the overall appearance layout, or style of the map you will  need the Experience Add-on.