From a template in word you can add the values received from a microsoft form and create a document
This new Word Online connector that was shipped last week should help accomplish your scenario.
Check out this blog to learn more:https://flow.microsoft.com/en-us/blog/generate-word-documents-in-your-flows/
On a similar line of thinking, a more streamlined mechanism to scrape the content of a Word document, and to append another document with that text is something I've had requested from functional users on a few occassions.
This feels like something that MS would have on a list of low-hanging fruit.
You forgot to mention that the word online connector is premium and has an extra cost attached.
Will the connector be updated to allow for Rich Text SharePoint Columns to be able to populate a Rich Text Microsoft Word Control? Right now it tries to import html in a plain text, however our business case would really benefit from having a direct rich text to rich text look (ie bullut points, bolds, underlines ect passed over). Right now this connector will not display a Word Column if it was made in Rich Text Format.