We did recently improve how notifications are delivered on Android, about 1-2 weeks ago. Keep an eye on if you are still having issues, I hope the delay is resolved.
The mobile app does a "jump to the first unread message" by default, which is the same behavior the web app follows.
If you don't want to read through all the messages in the current stream you can press "Mark as read" and then the app will be jumping you to the latest messages.
Would that improve your navigation flow in the app?
There are tools for 'drawing pictures' already.
From Google's Tilt Brush, to Oculus' Medium and Quill.
And game engines start supporting scene editing directly in VR.
This is not about pictures. This is about interactive websites in VR.
For anyone wondering: 'Why JavaScript? Why React?', let me remind you, the goal of ReactVR is not to create the most performant game, but to allow the people that are creating websites right now, to create VR websites in future.