Rails 7 and Turbo: form_with and turbo_confirm

I got stuck when using turbo_confirm on form.submit button in my new Rails 7 app. The following does not show the confirmation dialog with Turbo while the action renders correctly.

 <%= form_with(url: check_path) do |form| %>
  <%= text_area_tag(
    :typotext,
    @received_string,
    class: 'form-control font-monospace'
    ) 
  %>

  <%= form.submit 'Submit',
    class: "btn btn-primary",
    data: { turbo_confirm: 'Are you sure?' }
  %>
<% end %>

Finally I found that the following works (via New Rails 7 Turbo app doesn't show the data-turbo-confirm alert messages don't fire (turbo-rails 7.1.0 and 7.1.1) - Stack Overflow ). I got a bit surprised that { turbo_confirm: 'Are you sure?' } should be added to form_with, instead of form.submit (or submit_tag or form.button).

 <%= form_with(url: check_path, data: { turbo_confirm: 'Are you sure?' }) do |form| %>
  <%= text_area_tag(
    :typotext,
    @received_string,
    class: 'form-control font-monospace'
    ) 
  %>

  <%= form.submit 'Submit',
    class: "btn btn-primary"
  %>
<% end %>

FYI: In the controller action, I added status: :accepted for Turbo (jbuilder has been disabled in my app).

  def check
      flash[:info] = 'OK'
      # do something
      render :check, status: :accepted
    end
  end

I just wonder if this is expected and correct (I could not find the ones in current Rails Guides or API docs).

I found the following PR for Turbo. Forget it🙏.