I have purchased expensive Sony 1 iii for camera purpose and then I found out the selfie camera is unbelievably horrible in quality! I searched online and found it's the case with all owners of Xperia 1 iii. It's really disappointing. I believe you already know the issues related to this, but I elaborate anyway:

1- When taking photo with front camera, my face is blur, pixelated and smudgy!

2- If turn off HDR, face is better but everywhere the light is overexposed and blown-up...

3- if use selfie mode, face quality is ok (not good) but like above point, everything else is very much overexposed! 4- When using front camera, if one person is a little farther than others, his face would be blur...(no depth of field) 5- people suggest using back main camera instead but how it is possible when you can't see what you are taking photo...

Really disappointed.... Sony only cares about back camera and just ignore front camera. Even the cheapest phones can take better photos in front camera...