Allow you tablet to rotate the screen. If the home button is in the way when you are holding your tablet horizontal, rotate it 90 degrees so that the screen is vertical. This should allow you to access these buttons on the Netflix app. You may have to go into your settings to allow for the screen to rotate.
https://sg.answers.acer.com/app/answers/detail/a_id/35340/~/enable-and-disable-screen-rotation-in-android