The munchkin will log the UTMs and you will be able to find them in the "visit web page" activities.
But unless you organize yourself to store the UTMs when the person lands on the first page in a persistent way, there is no way the Form can capture the UTMs. on the second page. You will need some JS to do this and typically, you will capture the UTMs and store them in cookies or in local storage, then you will use another JS to read these and add them to the forms or you will read the cookie values from the form itself with hidden fields.
Thanks for the mention Grégoire Michel ! Sid, I'll be happy to walk you through the solution. We use it internally for our company as well. Let me know if you'd like to connect.
(sorry for being slow on response, my login was temporarily dead.. )