The DroneDeploy workflow is to simply take the images and upload them. They take care of the stitching and formatting. You can then share the link to the pano however you like, but in order to get a full frame image that can be shared on sites other than DroneDeploy without a link then you will need to create that full frame on your own. I use Microsoft ICE to stitch the images and then GIMP to make the canvas the correct size. For Facebook in particular you have to enter some camera information so that Facebook treats it like a pano.
Image Editing for Facebook 360 through Microsoft ICE and GIMP
from this Thread.