Why do people still believe the Russia narrative? I mean, virtually every single major Russian narrative of influence over US or EU politics, media sphere, or whatever is proven by western investigative journalist wrong (of cause with convenient delay). Eg, the Biden laptop, the hacking of nuclear facilities, and list goes on and on.

We like to over-estimate the capability of Rus in this sphere. After all, the unparalleled, fine-tuned and omni present propaganda machine is in the US, self-declared, psy-ops through gaming industry, music, and movies, etc.

In summary, are there state actors influencing each other's population: Yes. Does Russia somehow hold the super-powers in this domain: No, not by any stretch of imagination. Do they spent more money on foreign interference than US +EU, not by orders of magnitude.

But the function of a boogeyman is just as important, if not more, than an accurate model of the world (I concur).