Suuure, if the USSR had been a deeply neoliberal market economy. Something tells me you don't know anything about either the EU or the USSR.

While I agree EU is nothing like USSR, calling it a market economy is kind of questionable. It’s a bit of a hybrid, which companies allowed to market and sell on their own but with intense regulatory control over product design.

From USBC to ad supported business models, the EU has fairly tight control over how products are designed and monetized, in a way that I don’t think can be described as a pure market economy.

Note that I’m NOT saying their level of centralized control and government specification of product requirements is bad. It’s a legit trade off and there are arguments that some or all of it is enlightened. But it’s certainly not a place where you just build your product and ship it and let the market decide.

since when a market economy need to have no regulation?

Market economies are contrasted with planned economies, i.e. how prices are determined and production allocated, and the EU most decidedly is not that.

Since when is “no regulation” the only alternative to bureaucrats defining minute product details that customers are perfectly capable of preferring with their wallet?

Really, that was a very lazy false dichotomy.

Well, obviously there are differences, but some overreaching and, I believe, unrealistic policies, such as the EU's climate policies, are somewhat reminiscent of the Soviet Union's central planning.