So the first pic is from the S25 ultra posted a few wks ago, and 2nd taken with the S23 ultra today, dunno if there's much difference but my goodness, it has made me realise I miss having ui16.1 and to me, confirms my belief that the S23 ultra, and the Note 20 Ultra (in Mystic Bronze) are at the pinnacle of aesthetics when it comes to mobile phones.
I have the same gripe, two years ago I sold my S23 Ultra and got the S24U, and this January I upgraded to the S25 Ultra,
To this day I regret selling that sweet S23U and wish I could have it back, it was the meaning of perfection and flawlessness, from display to cameras to form factor, even the official Samsung cases for it were perfect and high quality.
On the contrary, I am not nearly as happy or comfortable with the S24U/S25U, they are not bad phones, but don't come close to the perfection of the S23U, which I wish I kept.
I also don't like the displays on those phones, the anti reflective display, despite having benefits, there is something off about it, screen uniformity, viewing angles, color reproduction, there is something off, at least to my eyes... 
