Now on Android P/OneUI, when you change the camera modes, you can't scroll directly to the mode you want. It's one by one, which is slow and irritating since the system also loads the mode in question before allowing to swipe to the next mode. On prior versions, you could just scroll without interruption.
Also, please replace the "Front/Rear camera toggle" with the record button. It's easy to swipe up or down to get a selfie and you have plenty of time to take one, but that's not the case for a video.
Also, please re-add the HDR toggle in the top of the Camera UI without having to go in Settings. Or at least give us the option to change the toggles. I don't need the timer option of the Full Screen option.
Also, please add back the Auto Filter option in Filters. It was very, very convenient.
Finally, Scene Optimizer doesn't work. At least it works once at the camera opening, but not after.