as a technician myself, I hate this. I truly don’t understand why any tech would ever do any snooping. I fix dozens of devices a day, I need the password so I can test the new part and make sure everything is working as it should be after the repair. I’m far to busy and apathetic to give a shit what people have on their devices.
side note, for those of y’all with Samsung phones, there’s a maintenance mode that will allow the tech to test everything after the repair but not access any data on your device.