Samsung recently pushed Oneui (their skin over android) I think version 8 to my 3.5 years phone (s22 ultra). Menus and light design changes are barely noticeable, but - they also revamped photo app.

Now every single picture taken is much sharper and better looking, the darker it gets the bigger the difference. Also 10x physical zoom produces much better photos in all conditions. It feels like I just got a new phone with amazing new cameras, I'd say dxomark score should be revisited.

Now maybe they tackled some hardware reserves via better algorithms, its all possible. Or, slightly more probably, some tiny little AI is ironing out pictures on a level not detectable by mere viewing by eye. I don't complain, camera is #1 priority for me on phone as an amateur photo enthusiast, and basically I don't need to upgrade phone for quite a few years. The results are really really good and I haven't seen anything noticeable in few hundred snaps, often done after sunset.