Retrieve `customer_locale` from Markets GraphQL API

Hi everyone!

I’m trying to retrieve customer_locale(this field is existing on Order object, so I want to match this e.g: en-US) from the Markets GraphQL API. I was able to get the language from the locale field, but I couldn’t obtain the country code in a way that isn’t deprecated. The format I’m looking for is something like en-US (languageCode-countryCode).

Additionally, I only want to fetch active markets.
My current query (Yellow-colored ones indicate deprecation.)