>>391669067
Performance improves because instead of running 2 compositors over 2 runtimes (App talks to SteamVR which then talks to WMR/Oculus shit) you talk to OpenXR api of WMR/Oculus directly.

Index supports OpenXR through SteamVR natively there is no additional layer.

also
>measuring application "bloat" by storage size

You do know that it contains some debugging tools, firmware tools, graphics for the room setup, steamvr tutorials, home world (which you can disable with one checkbox), localisations etc? It's not bloat it's the things you need to use sometimes. The runtime itself is small.

Stop being retarded.