* What type of jobs? - "The 20,000 additional jobs, Apple said, will focus on research and development, silicon engineering and AI."

* Does the US have the required people, in terms of numbers and skills? - "The company is opening up what it calls a manufacturing academy in Detroit, where it will help smaller companies with manufacturing. It already operates an academy for app developers in the city. It’s also doubling its manufacturing fund in the US to $10 billion." - Sounds like they are upskilling, and will count the employees of companies joining the academy as "jobs created"

* Does this mean moving to US based fabs for the M-series chips? - "[M-Series] chips themselves, however, continue to be produced in Taiwan.

* Is this actually profitable, or is this just a political move? - Define profitable. It is cheaper than paying tariffs.