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 🫠)
That’s been around for a while sadly, you need an alternative launcher. I’m grandfathered into Nova but most people are moving towards Lawnchair, I think.