I have tried different ones, under basic settings->Shops, for my language shop I selected localization as french and I also tried with Armenian. When I look at snippets at snippet management, there are two snippet group for each, there is default fr/french and another fr/french
When selecting the default/Fr_fr tab, are there any snippets?
Shopware provides several snippets for locals like french - in this case the localisation has to be FR_fr. Otherwhise they won’t be used.
Any issues with the systeminfo? Perhaps a requirement is missing and therefore the snippets won’t be imported?
Are you on a windows server environment? There are some issues with snippets as well.