@nprofile1q... Pixel Camera achieves lower noise in low light in the regular mode via more aggressive HDR+ using more frames with some using longer exposure time. This is not yet available to apps outside of Pixel Camera on either GrapheneOS or the stock OS. It's likely going to change in the future since it does impact the stock OS that they haven't put more aggressive HDR+ support into the Camera hardware and HAL. If you want all of the fanciest features then use Pixel Camera on GrapheneOS.