I find that the S25ultra photos are not as sharp as the S23Ultra. Im not using any camera guards. Any reason for this?

If anyone is looking for a S23Ultra as good as new (just removed the side films) do let me know.

How safe are camera lenses? My S23 Ultra lenses when removed have a paste that remains.

What is the best way to transfer all data from my S23ultra to the S25ultra? From the moment I start my new phone it's Google that asks all the questions and provides the guidelines.Do I need a Samusng email account?