I disagree (and am European, and a union rep for many years). Subordination is what I expect from an employee and obedience from a dog.

Subordination is a role you opt into. Obedience is something you can't get away from.

You take a job as mailman and then you are a subordinate to the postmaster. Refusing to carry out sensible and appropriate orders (without a valid reason) is insubordination and grounds for being fired (more or less) on the spot, even in Scandinavia.

What counts as an appropriate order and a valid ground for refusal is probably very different in different regions/countries/states, but the basic dynamic is not.

Insubordination is an english word, and it is written into employment law as grounds for immediate dismissal. "Disobedience" isn't. Basically, if you take a paid job, you subordinate yourself to your boss.