Not sure if this is happening for anyone else, but a basic, no adjustment default form being added to the page, when I click submit, it never shows the loading spinner, nor a thank you success state.
Okay I realised the problem: When adding a FramerForms form: i.e. clikcing "Single Page Form" and having it add a form to the canvas, the button that is added along with the form does not have a "Form State" Setting on the side, so essentially the default FramerForms form that you add is broken. When adding a form with Framer, the submit button has the ability to select a form state so thats the workaround I found.