Begin with the congregation, not the stage design
Measure the nearest and furthest occupied seats. The nearest seat determines when pixel structure becomes distracting; the furthest determines how large lyrics and faces need to be. A wide wall may look impressive in an elevation but still fail if the content safe area sits behind musicians, lecterns or lighting positions.
The strongest sanctuary layouts give live camera, lyrics and visual atmosphere distinct zones. That can be one 16:9 canvas, a panoramic format or a central screen with carefully justified side surfaces. The right geometry follows the service, not a catalogue photograph.
