you’d have to edit that template (faq’s -> https://www.wp-pizza.com/topic/editing-templates/)

However, I don’t know why you would want to slow down somebodies checkout process with loading a – most probably – useless map with all the overheads it entails, but that’s of course up to you

Furthermore, though it depends on your country and countries legislation, you might also find that if you put that map in the wrong place in that final confirmation page before someone orders their things you might be breaking some local laws.
Just wanted to mention it . It’s all entirely up to you though…