Sony camera firmware is Android based, but without the Android UI.
Some of the camera makers have added apps and app stores and they haven’t been popular.
Most users don’t want their dedicated camera to be a full Android phone. The specs of the CPU don’t matter as long as it shoots fast enough and does what you need when you press the button.
The touchscreens are a common point of complaint as they are. Many photographers want physical controls and a viewfinder. The screen is only there to review photos quickly.