Is It Bad if You Not Using DataBinding Library

[muzeasd]

Hi. Thanks for the great tutorials.

I am fairly new to these MVP, MVVM stuff and trying to find my feet. My questions are

1- You are not using the official Data Binding library. Shall this be considered bad approach, especially when you are using LiveData?

2- If conducting interviews, would you tend to favor more those guys who implement MVVM using "RxJava + Observer" rather than native LiveData + Data Binding + Observer? Why do I feel interviewers will shoot me in the head if I am not using RxJava.

Thanks again :)