🇺🇸United States @neuquen

For those of you looking at this issue today, there is no need to create a settings handler for this. You just need to do the following:

1. Create a radios/checkboxes element
2. Set each option value as the URL, with the option text being the text to display to the end-user
3. On the confirmation settings, use a token for the confirmation url: [webform_submission:values::raw]

That's it!