Background: I was commissioned to use Sharepoint and Microsoft Flow to set up a moderately complex document approval process. I have very little experience with both.
Requirement: I need a way to show users a form when they upload a new file to SharePoint (see below for an example). This form is used to capture the required metadata for the document you are adding. I'm working with a modern SharePoint site, and Sharepoint Designer is not an option because it expires in favor of MS Flow.
Question: How can this be achieved in Sharepoint?
I spent more time admitting that I was trying to find a solution to this (seemingly) simple problem. I'm pretty new to Sharepoint. So if this is a stupid question, I apologize in advance!