Apple leather cases for iphone 11 series and below are pretty good actually. They show nice patina along the way. However, starting from iphone 12 and above, they applied some sort of coating (i forgot the name) on top the leather so the patina wont be the same as before, and wont be as good.

If you have iphone 12 and above, I'd suggest to avoid apple leather/finewoven case. If you like leather better get nomad or belkin cases.