A recent wiring overhaul at my house saw the electrican bundling about 6 cables with my cat6a runs. Never been happier that I went with shielded; no apparent is

A recent wiring overhaul at my house saw the electrican bundling about 6 cables with my cat6a runs. Never been happier that I went with shielded; no apparent issues despite zero clearance, but imagine non-shielded buried in a wall somewhere, undiagnosable