Subdivision monuments do not choose a bracket
Many of these streets were built as planned neighborhoods, sometimes with a fireplace already centered on a tall wall. Sit in the chair you use before you accept that center. If the opening for cords is high, or aimed past the sofa at a pass-through, say so in the notes. We would rather discuss the opening than build around it. A full-motion arm needs clear space. Measure the swing with tape if a doorway is close.