Worker LANG is C.UTF-8

My local machine has LANG=en_US.UTF-8.
I am using a dependency which is sensitive to the order of the inputs fed to it.
ls default sorting depends on LANG.
Because of the difference between my machine and the worker machine ls output was different because of sorting.
Solved it by changing LANG env var on the worker machine.

Shouldn’t the default value for LANG be en_US.UTF-8 on the worker machine ?

That might depend on the actual machine — who’s hosting, and the default locale of the country offering the service.