Oculus Rift to Quest development migration.

Is it possible to develop Quest app without owning a Quest. I am migrating my Rift game to Quest and I am facing problems with UI menus in and in game's performance. 

This how my Rift Game UI works : https://www.youtube.com/watch?v=pJqJ-eVVRLg&t=3s

I have asked my friend to test my new Quest build:

It has shown like this: https://www.youtube.com/watch?v=vSRHuH2qu-0

Is there a way to emulate Quest build and test it via Rift? Yes, you can advice me that it must be okay as long as its playable in Unity Editor. But I am missing the UI functionality in the build and couldn't able to find what am I missing without a quest device. Can anyone educate me with the difference between Rift and Quest UI system?