The version 60/62 update is all messed up.
AVOID version 62!
If you download from the Unity asset store, you get a different mix of version 60/62/5x than if you download from Meta.
The OVRCamera is only available IF you load the samples. And then you have to copy it manually from Library/com.meta...../something into Projects.
The SAMPLES install with a TILDE (~) (Installs as "Samples~") in the file name, and in Library, they do get installed into the Project folder. I had to manually copy the directory, and remove the tilde in order for them to be seen in the Project folder, so I could select the prefabs I needed. Is OVRCamera deprecated?
The OVRManager is also not installed into Projects, it is in Library/com.meta....something. Still working to get that into Projects.
The Unity asset store has version 60, if you download the tarballs from Meta, most are version 62. I tried both. They each have odd missing files, that are put in to Library and not Projects.
The Assets->Voice SDK->Add App Dictation Experience to Scene, kind of works. However it now makes 'Oculus.Voice.Dictation' namespace undefined. Still looking for what that is called now.
The documents are way old, so it is a guessing game.
More problems, some go away as I find the missing files.