This is a very basic preset, a photo with 3x4 proportions and a large face in the center.
Since we know the location of the point between the eyes and the bottom point of the jawline, we can straighten the face by aligning these points vertically. The icon for straighten presets has a white vertical line.
The straighten function usually works well for all photos as long as the person in the photo is looking directly at the camera.
Additionally, there is an option to set an additional tilt. Here is a photo straightened and tilted to 23 degrees.
Note that the center of the image rotation is the point between the person’s eyes, and the person’s face always remains in the selected position inside the crop bounds.