Why engines on the wings?
Well structurally it’s helpful as the load of the engine is out on the wing making the wing structure lighter for the same loaded weights.
Given the overal thrust was not huge for the weight of the aircraft saving weight was very important if you had to lug around a couple of very heavy engines.
Consider two early jets in a meteor weigh in at 950kg (2,050lbs) and combined produce 4,000lb thrust but gobbled up 2,000kg of kero an hour at full throttle.
Airframe weight was critical.