My one, big complaint about Angular is the sheer amount of badly documented knowledge you have to accumulate to become an expert in it, so few people really are

My one, big complaint about Angular is the sheer amount of badly documented knowledge you have to accumulate to become an expert in it, so few people really are - the article even touched on that. Better yet - even those who mastered it still discover new things from time to time. In my previous project I've met a very knowledgeable developer who taught me, among other things, that components can also provide services (of course they can!) but shied away from RxJS stuff, which in turn was something that I could teach him. We both struggled with circular dependencies in Jest tests and never solved that one, because at the time the designers of the mentioned testing framework refused to tell how exactly was workload parallelized, so debugging was difficult to say the least.