HTC's Viveport Video service will work on rival VR headsets
 

HTC has introduced a virtual reality video platform of its own on Vive's third birthday, and it will even work on its competitors' headsets. The new service called Viveport Video will give you access to a library of not just 180- and 360-degree video...

https://www.engadget.com/2019/04/05/...video-service/