Node version : v16.13.1
OS : Windows 10

By using native shell (CMD under Windows)

const child = shell.exec(
      'ls'
    )
console.log(child.stdout)

We are able to get stdout.

However, if we specify another shell (git-bash for me)

const child = shell.exec(
      'ls',
      { shell: bashPath, windowsHide: true }
    )
console.log(child.stdout)

In this case, stdout is empty :(

Reagrds,