[help] few questions for the mate 20 pro

Hi, planning to buy a Mate 20 pro, but they're some questions I've in mind.

1. Is there a way to disable vibration when opening the recent app menu with the gesture navigation enabled?

2. How long does it take the screen to turn off again, when using raise to wake. For example when I just want to change the song in Spotify, I don't want the screen to be on for say 10 seconds.

3. I like using apps like color note, which allow to make notes, which are handled like notifications. Do these app work well with Emui 9, because of the whole cut off apps for the sake of battery thing

Thanks.