Put this shortcode on your Register page:
[nonprofit_lms_register redirect="/courses/"]
The form asks for a username, email address and password (with confirmation), then every profile field you’ve set up, then the consent checkbox if you’ve turned consent on.
When a visitor submits it, the plugin checks everything, creates their account, saves their answers, signs them in, and sends them to the redirect page. Leave the redirect out and they go to your home page. Visitors who are already signed in see a short note instead of the form.
Your fields show up in other places too
Your profile fields also appear on the standard WordPress registration form and on user profile screens in the admin. That keeps the data consistent no matter how an account gets created or edited.
Developers styling the form can find its class names in Developer notes: templates and styling.