It's not hypocritical, there's no such thing as an absolute right to freedom of speech in the EU like there is in the US. Chat Control is widely opposed in the EU and I don't agree with it, but it's not hypocritical nor inconsistent with how the EU treats freedom of expression.
Here are the limitations placed on freedom of expression by the European Convention on Human Rights:
> The exercise of these freedoms, since it carries with it duties and responsibilities, may be subject to such formalities, conditions, restrictions or penalties as are prescribed by law and are necessary in a democratic society, in the interests of national security, territorial integrity or public safety, for the prevention of disorder or crime, for the protection of health or morals, for the protection of the reputation or rights of others, for preventing the disclosure of information received in confidence, or for maintaining the authority and impartiality of the judiciary.
You won't find those conditions in the 1st amendment of the U.S. constitution.