Video how to work with the contact page template:
Create the page from Add Page – and choose the template CONTACT PAGE
Contact Page company details and social links are set from here:
Help for how to find coordinates: https://help.wprentals.org/article/how-to-find-latitude-and-longitude-how-to-set-google-maps-coordinates/
The map zoom takes the global map zoom, but you can change just this specific page using this setting.