[ktosobcy]

I do hope that (for example) EU would force makers to provide a way to unlock the device and install any OS/distribution I want...

[hocuspocus]

The EU wants to mandate 5 years of security updates, which is a lot more relevant to the immense majority of consumers.

[ktosobcy]

One doesn't (have to) rule out the other?

Would it be OK if you were forced to use only the single OS that your computer came preinstalled with?