My S23 Ultra does this now. It no longer has the bixby button, but the power button can be remapped. I have it now so that double clicking the power button opens my camera app, but long pressing it shuts off my phone.
I’d still like an extra button and/or squeeze function like the early pixels had. The big thing for me on the ultra while you’re in the camera app would be a shutter button like some of Sony Xperia phones have. Being able to double tap the shutter button for the camera could open the power button to open another app or function, also wouldn’t mind seeing a triple tap function added to the button as well.
My S23 Ultra does this now. It no longer has the bixby button, but the power button can be remapped. I have it now so that double clicking the power button opens my camera app, but long pressing it shuts off my phone.
It’s been like this for at least a few years using the stock Samsung OS.
You can do it on pixel too. I have it open assistant on long hold or double tap cam.
I’d still like an extra button and/or squeeze function like the early pixels had. The big thing for me on the ultra while you’re in the camera app would be a shutter button like some of Sony Xperia phones have. Being able to double tap the shutter button for the camera could open the power button to open another app or function, also wouldn’t mind seeing a triple tap function added to the button as well.