Is when the author tells the reader directly in the narrators voice what a character is like?

The point of view from which a narrator speaks would reveal from whose perspective the story is told.

The mode of narration is the method the author uses to convey the plot to the readers.

The point of view in which the narrator speaks directly to the reader would be First Person Present or First Person Past.

.The familiarity of the narrator doesn't restrict the point of view of the story. The story can still be told in any POV.