Comment 2 for bug 1983399

This is the first I've heard of any advice to avoid LC_ALL, and I wonder what is prompting that advice.

It would be a pain to set every other LC_* environment variable to en_US.utf8, and POSIX says there should be no point to doing so, as POSIX requires the painful approach to have the same effect as simply setting LC_ALL. See the POSIX spec for internationalization variables in:

https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html#tag_08_02

Briefly, POSIX says that setting LC_ALL to a value should have the same effect as setting the other LC_* variables to that value. It should also have the same effect as setting LANG to that value while leaving all LC_* variables unset.

If the snap packaging for Chromium and Firefox doesn't do that, then it's a bug in the snap packaging that should get fixed.