Where to find composer's global packages?

Composer stores global packages in the "vendor/bin" directory within your system's home directory. On Windows, this is typically located at "C:\Users\YourUsername\AppData\Roaming\Composer\vendor\bin", and on macOS and Linux, it's located at "~/.composer/vendor/bin". You can also find the location of the global packages by running the command composer global config bin-dir --absolute in your terminal or command prompt.