Re: GDPR?
I'm not so sure about that. The two pieces of information together assumes that somebody knows that Joe Bloggs at No.22 restores steam engines. Now thats 4 pieces of information that is required to personally identify you.
If you had kept it a secret that you restored steam engines and then based on your two pieces of information nobody could identify you as the subversive steam engine restorer.
I guess what it shows is that any information can potentially become personal information if there are enough individual bits of separate information to form a profile.
Conclusion: if you are paranoid never tell anybody anything. On the other hand you are just a speck that lives for a tiny length of time on a tiny planet in a vast multiverse where you and your information or in fact this entire planet really don't matter. It's a case of perspective.