I'm not sure if this is the case when in your own private show, but when spying on private shows it's not in VR on DeoVR. It's difficult to describe but it still loads fine on the headset, but the image is clearly not 3D. As soon as the private show ends, it goes back to being proper 3D. Issue started a couple months ago now I think? I'm on Quest 2.
VR Cam Private show spying not 3D
ilikebagels11 Hi 
Was your Quest 2 connected to your PC when you encountered this issue?
Is it possible to send a screenshot to a private discussion?
8 days later
AlexSLR No it was not connected, I do have a couple of screenshots that I took to try and show the difference but I can't remember which one was the private lol