For extremely limited values of 'everywhere' which shake its definition. I don't think a basic Arch Linux installation includes perl. Windows as you say would

For extremely limited values of 'everywhere' which shake its definition. I don't think a basic Arch Linux installation includes perl. Windows as you say would surprise me. 'the major Linux distributions' (plus I think macOS, perhaps inherited from BSD, no idea) might be fair, but certainly not 'everywhere'.