I'm new in VR development and I try to choose engine which I'll study and use for my first app.
After some research I prefer UE4 over Unity but I can't understand can I create full cross-platform app that can be used on for example Vive Index and Oculus Quest 2 in standalone mode?
As I know Unity give you this opportunity, but what about UE4?
As of Unreal 4.27, the OpenXR VR template will work out of the box for Valve Index, Quest 2, and other headsets. Here's a link to the docs of the new VR template, which has a list of devices: https://docs.unrealengine.com/4.27/en-US/Resources/Templates/VRTemplate/