> On Mar 13, 2025, at 10:10, Paul Foerster <paul.foerster@gmail.com> wrote:
>
> Is C.UTF8 really the same as en_US.UTF8?
No. C.UTF8 sorts on Unicode code points, which will be (somewhat) different from en_US.UTF8.
If you want a collation that is "good enough" across multiple languages, the ICU collation und-x-icu is the best bet.