Early Population III stars were characterized by extremely low metallicity, which necessitated their formation as much larger entities, often exceeding hundreds of solar masses. Metallicity influences stellar formation by affecting cooling processes; without metals, gas clouds remain hotter, leading to higher Jeans masses and consequently larger stars. The discussion raises questions about whether the relationship between metallicity and stellar mass is causal or merely correlational, suggesting other factors may also play a role. A referenced paper provides a comprehensive overview of these dynamics. Understanding the interplay between metallicity and stellar mass is crucial for astrophysical models of early star formation.