Issue with Pipe vs Flow in TypeScript

(expression) =>
    pipe(
      Match.value(expression),
      Match.when(Array.isEmptyReadonlyArray, () => []),
      Match.when(Array.isNonEmptyReadonlyArray, Array.unprepend)
    )

// vs

flow(
      Match.value,
      Match.when(Array.isEmptyReadonlyArray, () => []),
      Match.when(Array.isNonEmptyReadonlyArray, Array.unprepend)
    )