Why ‘Ok’ Buttons in Dialog Boxes Work Best on the Right - UX Movement
Button placement is important, but remember to also pay attention to the visual weight and labels you give your buttons. All of these design aspects come into play when users process dialog boxes. Now that you understand the reasons why ‘Ok’ buttons work best on the right, you’ll have something more to refer to when figuring out button placement than the flimsy platform consistency argument.
via uxmovement.com