Which country is mostly using Telegram?

Based on the given paragraph, could you please clarify which country is the primary user of Telegram? It's quite intriguing to understand the geographical distribution of this popular messaging app. I'm particularly interested in knowing if there's a specific region or country where Telegram enjoys the most popularity. Could you elaborate on this aspect, perhaps highlighting any notable trends or factors that contribute to its widespread usage in that particular country? Thank you for your insights.