You got me wrong - I related to your claim that X is "the most important social network". There is FB, there is VK, there is WeChat, Sina Weibu, tiktok, Instagram, discord and so on.

A lot of my (older) colleagues never ever used Twitter, they only use FB for example. That "Twitter thing" seems like an unnecessary redundancy to them, the same way a sane person older than 25 would never use Instagram for example.

My Eastern colleges all use VK and telegram (and not just since the war in Ukro, they literally don't know about Twitter because nobody of their friends is there)