Language selector and default language on filter bar

A user is able to choose supported languages from a language list on our platform. The user is required to set one default language (the system defaults to English). The language dropdown is available on the filter bar.

I'm concerned about this pattern - should these two actions be displayed in one dropdown, or would it be better to split them on the filter bar? If so, how might that be labeled? Languages + Default language to choose? In that case the user has to use 2 dropdowns, and it can increase error prevention...any ideas?