The purpose of this study is to evaluate how well and how safely the experimental drug, divarasib, works compared to other approved drugs for people with advanced or metastatic non-small cell lung cancer (NSCLC) that has a mutation in the kirsten rat sarcoma virus (KRAS) G12C gene. This gene mutation drives cancer growth. The other approved treatments are sotorasib or adagrasib. The study drug, divarasib, is experimental, meaning it has not yet been approved by the U.S. Food and Drug Administration. While several drugs targeting this gene mutation have recently been developed, there is still...