So given all that, what is the latest on the keybinds needed and their order to get VR working in Odyssey while walking?
There are two whole sections in general control options, for "Camera Suite", and "Free Camera", and once you have entered the camera suite, it will by default overlay a HUD that shows your bindings (toggleable).
...so it is possible to switch over to the "vanity camera" (default is Left CTRL+Left Alt+Space), unlock it from your player avatar (freecam), "drive" it over to as close in front of your character's face as its hitbox allows (this can be finicky), and once there lock it back to the avatar, so that if follows you walking.
...but, as established, you can not interact with anything in this camera mode, nor see the gameplay HUD,
including the big red warning that one of the omnipresent triggerhappy guards has singled you out for an identity scan.
Good for a stroll, though.
(The camera can also become "scraped off" of you, if you walk into something. :7)