Looking at this years camera flagships, a few observations:

Megapixels

It is nice to have some high resolution sensors (50mp - 100mp), and to see front sensor resolution improvements. That being said, please stop putting low resolution sensors (10mp) into the camera array for anything but the „main“ camera.

Redundant telephoto lenses and strange focal lengths

S21 ultra, this is a strange arrangement: 13mm@12mp, 24mm@108mp, 70mm@10mp and 240mm@10mp . Between 70mm and 240mm it leaves you hanging. 70mm sucks for portraits and so does 24mm.

This would be vastly better: 13mm@50mp, 24mm@50mp, 50mm@50mp, 120mm@50mp.

Lack of good photo raw formats

To get good photos, raw is a requirement. It is all a bit of a mess though as the raw formats (if raw is supported at all) are often only marginally better than jpegs.

Please support good raw and let us choose what sort of bit depth and compression we get on our photos.

Lack of video raw

It is a bit of a shame all the hard work on image processing and sensor hardware goes to complete waste once you film video and it gets smushed to mpeg pixel mud. Please support good video raw formats.

Fake shallow depth of field

I understand the limitations of small optics and the need for the effect, and it is an impressive feat of image processing. But it will always look fake.

I would suggest coming up with a small scale physical way to achieve shallow depth of field (diffractive optics, light field photography, what have you).

Bump geometry

These camera bumps are necessary, and frankly I dont mind their size. What I do mind is that they are lopsided, making it impossible to set the phone down on a flat surface and use it be because it rocks back and forth. Just make the bump stretch the whole width of the phone.

Color science

All entry level $200 and above dslrs/mirrorless cameras from canon, nikon, etc. nail auto white balance and faithful color reproduction. I am mystified as to why phones lag so much behind there.