Wikipedia article [1] says that the rule to use ", " is not universal (at least for Arabic-based and CJK locales).
[1] https://en.wikipedia.org/wiki/Comma#In_other_languages
Discussion in the translator list:
https://marc.info/?t=154385774700004&r=1&w=2
CLDR rules for Japanese:
https://www.unicode.org/cldr/charts/34/summary/ja.html#6518
for Arabic:
https://www.unicode.org/cldr/charts/34/summary/ar.html#8937
for Chinese:
https://www.unicode.org/cldr/charts/34/summary/yue_Hans.html#6423