Who would need to press the power button to actually turn off or restart the device, right?
The setting to change this is also pretty much buried under Settings -> Special Features -> Gestures.
(Yes, I have no idea why the Assistant is in German when the phone is set to English either 🫠)
Holding power + volume down brings up the power menu Pressing power + volume down takes a screenshot
Though other comments point out that there isn’t any consistency between manufacturers
Oh wow, they made it even more fuckin stupid by adding different functionality for long press vs short press.