Unlike a video which you can download and then use on your own social media channales - a 3D tour needs a platform to run on, and the only one way share the tour is through the platform's link.
In the case of a Zillow 3D - it's a Zillow link. But don't worry it's MLS friendly. Simply paste the link into the ADD/EDIT Matrix - in the Realtor tab. See Marketing Links and Information section
Virtual Tour Link = Zillow 3D link
Web Link = Video Link. Our suggestion is you DOWNLOAD the video file from the delivery page, upload it to your own social media channel - and then use your OWN LINK on MLS - it will get a lot of views and you'll get a great socail capital out of it!)