Every marketing dashboard depends on one simple idea: that a “session” in Google Analytics 4 (GA4) represents a real visit. But what if it doesn’t? What if the numbers senior teams use to judge campaign performance, conversion efficiency, and engagement are quietly distorted by the way GA4 handles time? That’s exactly what I discovered — and what led me to build a lightweight browser-side layer that makes GA4 see reality , not just timestamps. The hidden problems in GA4 sessi