Hi. I am facing the same issue. I have a Form that my organization uses. It is not a Group Form because, when created in a Group, the option for users to save and edit their responses is disabled as I understand it.
I see the workaround for a Flow to add a new row to a linked Excel spreadsheet when a new response to the Form is submitted.
What I need to know is - how do I get the spreadsheet to update when a user submits an edited response to a previously saved Form. In other words, right now, I have to go to Forms and open the spreadsheet to get the "Last Modified Date" column to populate. There does not appear to be a Flow that works for edited submissions of Forms. And that is the big piece missing for me.
For example, we have a Flow that sends a PDF of the Form submissions to the user after they submit it. But it won't work if the user is submitting an edited version of a previously saved Form. So the user tries to print the form themselves, but if there is a long answer, it cuts off. There's no way to obtain a proper version of the Form with the completed long answer unless the owner goes in and prints. This is an issue.
Any suggestions you have will be appreciated.