You can embed videos from various websites on your form. All you have to do is to add on your form Embed video field. You can find this field under Media & Structure section, in the left side panel.
Once the field has been added to the form, you will have to provide the Video link in the URL section and the video will automatically be retrieved on your form.
Important NoteAt the moment you can only embed content from the following streaming services on your forms: Youtube (videos & playlists, but not shorts), Vimeo, or Ted Talk.