[kevinossia]

I've used tons of concurrency in Android apps, iOS apps, Unreal Engine games, C++ code running a Raspberry Pi drone, embedded Android telemetry (Java/C++), and C++ AR/VR high-resolution realtime media streaming systems.

If you can wield concurrency, you can use it anywhere. It's liberating to be able to drastically improve the performance of your code by leveraging the multi-core processors our software runs on these days.

I've never done any OS work nor scientific computing.