Alright, this is in the doable but hard work category!
What I can suggest:
- Use a base page
- Create your form on your base page
- On user submit, create a sub-page with a unique id
- Display the url of the newly created subpage. Optional: use the built-in url shortener.
Now you’ll find everything you need for these three steps between the documentation and here, and if you need any more guidance, please ask!
The “hard” part comes from the sub-page creation. I suggest starting by reading this post: Allow guests to create pages from Panel or frontend
Please note: You must make sure that you add validation to the user entered data to avoid any issues !!