That's entirely possible. I know that the settings menu on my Note 4 on VZW was noticeably different from the settings menu on @mountainbikermark's AT&T Note 4 at launch, despite the fact that they were both running the same OS version and etc.Bk's post above shows them on an S6+. So it must depend upon the carrier. I agree, it is odd.
On VZW, we didn't get the option to do a grid instead of a list and a few other things that Mark thought I was crazy for not being able to find.