I am guessing the rectangular chip besides those front-end modules in step 14 is the gyro/accelometer. It becomes such a weird shape because Apple wants both a low-energy 3-axis and an accurate 6-axis in one module. If my theory is right, the marker on that chip hints STM.
100% made in TSMC. That is old news.
The wifi module is done by Murata again. And it seems to provide another chip above the blue one?
BTW where is the motion sensor, i.e., the accelometer and gyro?
Who supplied the gyroscope and accelometer? Traditionally it is near those front-end modules.
The chip below the green one looks like a Murata one. It has its marker "M" with a circle.