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If the sound is "eeeeeeeeeeeeeeeeeeeeee" it's the pump down solenoid. Is defrost on when you shut the car off? If it's on for like minutes after the car is off refer to:

#PI1267: High Pitched Whine or Buzz Noise from Engine Compartment After Engine is Turned Off - (Jul 8, 2014)

I'm not 100% on the numbers but whatever the app or boost gauges shows is usually in psig, not psia (14.7)

Vacuum is read as you displayed it. Vehicle is not relying on the turbo for power so it's aspirating naturally.
 
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