Does not surprise me. As a Norwegian I have experienced working for smaller companies getting bought up by US multinationals in many occasions.
The new American bosses tend to be surprised that employees have rights.
I remember they went through their employee handbook covering the rules we should follow.
Some of the rules they had on the books which was illegal in Norway:
1. Ban talking about politics and religion at work. Illegal in Norway as freedom of speech is a protected by government.
2. Drug tests of employees. Also illegal unless you operate heavy and dangerous equipment and have been given special permission by government to do such tests.
3. Criminal background checks. Also illegal unless you work with say children or in the military.
Of course we also kept hearing stories about how our colleagues in the US offices got treated. Not very nice. People got fired on the spot and kicked out.
In Norway you got to give a 2-3 month notice. You cannot suddenly spring on people “you are fired!”
And the reason for firing has to be legitimate. Insubordination e.g. isn’t a valid reason to be fired in Scandinavia. You have to be clearly neglectful of your job, or there has to be economic hard times.
Hence you don’t have to be worried about getting fired for say pissing off your boss as long as you are doing a decent job.