cross-posted from: https://programming.dev/post/17013197

• Facebook does not use Git due to scale issues with their large monorepo, instead opting for Mercurial.
• Mercurial may be a better option for large monorepos, but Git has made improvements to support them better.
• Despite some drawbacks, Git usage remains dominant with 93.87% share, due to familiarity, additional tools, and industry trends.