Chronic chagasic cardiomyopathy with apparent minimal repercussion and surprising electro-vectorcardiograpic features

Male, white, 36-year-old patient; computer technician, from the rural area of Ceará, in the northeast region of Brazil, where he lived for many years in a wattle and daub house, in an area endemic for Chagas disease.
He reports always being asymptomatic.

Questions:

What is the electrocardiographic and vectorcardiographic diagnosis

How to explain the aberrant location of ventricular depolarization in a patient with normal left ventricular wall location, size, wall thickness,and left ventricular ejection fraction?

How to explain the extreme low voltage of the QRS complexes in the frontal plane?

Why is the transition R-wave progression (isodiphasic R/S ratio) not present across the unipolar precordial leads?

What is the proper approach and risk stratification?