HI, Manual focus is with the rear control dial. I have not discovered any other way.
But manual focus on this camera is slow and the focus point difficult to pick accurately with or without peaking which does not work well on this camera.
AF or snap work just fine however.
If you allocate Manual focus to the Fn button you can achieve autofocus with half press on the shutter button then press Fn to jump into MF at the same focused distance.