Most laws are at least somewhat ambiguous and unreadable for the layperson. The gist of the GDPR is not particularly hard to understand and a lot of the complexity comes from covering obvious loopholes. In my opinion, the GDPR is not clumsily implemented at all (well, not within its text anyway). It's also deliberately technology-agnostic, to prevent a trivial loophole (Oh, I'm not tracking you through cookies, I'm tracking you through Biscuits™, totally different!) and that's one reason why a list of scenarios with clear-cut answers is not really possible.

A lot of tech involves interacting with data about people, so the software industry is affected by GDPR particularly hard. That's why you'll have a lot of people on a tech industry news website who may gave to consult a lawyer about the regulation.

Similarly, new traffic safety laws might have logistics companies seeking legal advice, health and safety regulations might have food companies doing the same or financial regulations might have any type of company ask a lawyer about the implications.

Besides, you might not be a layperson. There's a good chance if you frequent this website that you are a professional expert in different ways to store and use data for various purposes. In that case it might be a wise idea to take the time to learn your legal responsibilities with personal data to a slightly deeper standard than most people do.