Angular: Recurring problems I face as a Front-End Consultant

Hi, I’m Michele Stieven, a front-end developer and consultant in Italy.
Over the last 2 years I’ve been working 90% of the time with Angular since it’s one of the most requested technologies in this field in my country. I’d like to make a quick recap of the problems I face most as a consultant, and I’d like to address some issues or questions that I get asked maybe too often!