The OP is incorrect, most of the large organisations he cites do not practice trunk-based development. Google has a monorepo and what could describe as 'submit

The OP is incorrect, most of the large organisations he cites do not practice trunk-based development. Google has a monorepo and what could describe as 'submit patch for code review'. Only certain engineers can approve reviews and trigger the patch being applied to the trunk. https://github.com/google/eng-practices https://github.com/google/eng-practices Many of the others also have variations, but unlikely that any organisation with 1000+ engineers has a monorepo with all of those engineers directly committing to it.