How to shorten link for form

We do not have a URL shortener feature but you can create a custom URL for your form with a short name so you get a shorter URL. Guide: How to create a Custom URL of a form?

Or you can use 3rd party URL shortener sites like https://tiny.cc/ or https://bitly.com/.

By the way, I have also escalated this as a feature request as I think this would be a good addition to the Publish page aside from getting the default form URL.