Per the dev, it was the way Oculus handles single vs. multi-pass renders. Otherwise I've had both the oculus app and steamvr work for me with it.if yor using quest on some games openxr runtime need to be set active on oculus or steam
for this game it was oculus for me
so go to oculus setting>general click Set oculus as active under openXR runtime and that should fix the double vision
IN steamvr same way to switch it back to steam(But its under the developer tab)
PS i had no problem with the game after i lowered the settings in game this game needs a lot of work but i can really see that it has potential