Unfortunately, the EU is feckless since it doesn't have the power of the US or UK behind it, and with that the collective security might required to deal with Putin, who is neither an honest broker, nor does he have any intention of honoring any agreements. He simply uses the perception of diplomacy to legitimize his coercive and predatory behavior.
Also, Russian bullying of the EU isn't just limited to energy because he's simply using energy as a way to influence European countries to advance his political goals, the biggest of which is to destabilize Democracy so that it never reaches Russia, and also thwarting or completely getting rid of NATO so he can invade at will with no threat of a collective security response. Not that it should require a reminder, but the problem is Putin. If he didn't exist the need for NATO would gradually diminish over time because there would be no authoritarian Soviet/Russian state attempting to expand its sphere of influence.
This has been going on not just in Europe, but North American and beyond.
This is a recent snapshot of election interference, cyber attacks, and disinformation campaigns launched in recent years. The problem isn't the rest of the world, its one man and his megalomaniacal vision of expanding his authoritarian sphere of influence.