Quick-launching the camera?

[King Mustard]

On my Galaxy S8+, I could double-press on the power button from anywhere (even whilst locked).

Is something similar possible on the P30 Pro?

 

[Aljean Thein]

I believe only during its locked by pressing the volume button.

 

[Tsepz_GP]

On my Galaxy S8+, I could double-press on the power button from anywhere (even whilst locked).

Is something similar possible on the P30 Pro?

Double Press Volume down, it will take a shot immediately.

 

[King Mustard]

Double Press Volume down, it will take a shot immediately.

You can change the behavior in Camera app's Settings to just launch the app and not take an immediate photo