For those of us developing on the Quest, not even playing VR on our PC, we now
have to run the Oculus App in the background in order to even use the Oculus plugin in the Unreal Engine! These kinds of practices are signs of an insecure, greedy company, and will come back to bite them in the end as it has to many other companies in the recent past.
The Oculus platform has already paid a heavy price for going full exclusive after promising the community that it would stay open. That's the reason I, and my friends, always suggest Vive or Index over Oculus to people who ask what they should get.