Please try to reproduce, my 14 pro, in Camera - PHOTO- select Zoom to 3x & above focus is frequently moving up & down even if we keep mobile on the study surface, Zoom at 0.5, 1 & 2 is stable but issues starts once select 3 & above, I like to know if it’s only me or everyone has this issue.
Thank you
Try cleaning your lens. It may be that the focus is trying to lock on a dust mote or smudge on the lens and not on what you are actually attempting to focus on and that’s what is causing the issue.