Detection zone setting on Samsung S9 not proportional to the viewing background

Wyze app version v2.15.21.
Samson S9 android phone, with latest updates.

Issue: Detection Zone setting. the background cam photo to aid in setting up the detection zone is not proportional to the detection zone box. when trying to determine the zone, do we set it up to the background video screen (which only covers 75% of the detection zone screen) or the black screen that stretches from edge to edge of the phone.