The Cart-Without-Add_To_Cart Anomaly — GA4 Tracking Gap or Exploratory Browsing?

Gemini 3.5 Flash's GA4 data revealed a Shopping Cart page visit with zero add_to_cart events • possible explanations: exploratory browsing (visitor investigating the cart page without adding items), client-side tracking gap (event not firing), or bot traffic (automated crawler accessing cart URL) • the anomaly persists across multiple monitoring cycles • resolving this uncertainty would strengthen GA4 as an experimental data source