To just get started in RF you need to have a basic understanding of multivariate calculus, circuit analysis (including non-linear devices), systems and signals, electromagnetism, and semiconductor physics.
These are not topics you will just figure out on your own or "on the job".
Why are people promoting the idea that exams are not written or given in person anymore? I graduated relatively recently and maybe had 1 take home exam during my entire education. Every other exam was proctored in person and written. The professor who made the take home exam also made it much more difficult than a normal exam so I would not really say it was easier than a normal in person test.
I had one of these (although in the states it was called the G2. I also had the G1) and fully agree, best phone I ever had. It was also the only Android I had that survived longer than 3 years. Regrettably, I have since switched to an iPhone.
Immigration is absolutely a part of this deal. Interestingly, EU official communications and western media barely mention this, but the Indian government's official communication tout a "new framework for mobility" that will "open up new opportunities in the European Union for Indian students, workers, and professionals." [1]
If only European bureaucrats mortgaged their entire economy on 500 AI scam companies that never produce any profit and sold off their entire manufacturing base to their main adversary. This is how real superpowers roll.
The issue with x-ray lithography has always been... the cost. Just the cost of making a mask for one of these systems makes it unusable in industry. Would be interested to hear what they did to get costs down.
These are not topics you will just figure out on your own or "on the job".