I am wondering if this same method applies to Facebook Groups?

I am wondering if this same method applies to Facebook Groups or is it Facebook Pages only? If it is for Pages only, can a form be embedded in a Facebook Group post? If so, can you please explain how to do that?

Unfortunately, I think Facebook Groups would not allow to embed a form, so you can try it with Facebook Pages. 

As far as I know, Facebook does not allow content embedding from third party websites into the posts. Unfortunately, to my experience this is not possible to embed a form (JotForm or any other) to the Facebook post.

However, you can share the link to your form as a normal Facebook post.

We will gladly assist if you need any further help.