There isn't a dedicated VR section, which was expected, but searching for 'VR' and 'Cardboard' got me to the apps available right now.
They come in three flavors: simulators; 360-degree photos; and video.
Having an app like Sideloader VR is an invaluable tool in making sure that the content you want to watch or interact with, is saved properly.
Thanks to the extensive adult marketplace available through Mikandi I could easily find adult apps, and I know where to look first in the future.
While I did have to do a little bit more hunting for adult VR video, it wasn't hidden too deep either.
Finding the content you want is as simple as a google search.
For the most part, using these adult apps isn't difficult, though.