I can't see the option "Source code" in my embed panel. Could you help us on that issue?

However, I can't see the option "Source code" in my embed panel. Could you help us on that issue?

As I check your forms and see that the new form layout is being used for the forms. Please note that the Source code embed is not available for the new form layout. If you want to embed using the source code method only, you may consider changing the form layout to Classic layout (All questions in one page) from teh form settings.

Hope this information helps!