My personal opinion is that any app getting a similar dominance to WeChat worldwide is a scary as fuck thing, and should not ever happen.

However, from a developer's perspective; ease of access to development tools is crucial to reach that kind of adoption to the point where other companies are writing software to work with your platform. Telegram provides lots of these things pretty well, and it wouldn't surprise me for them to become a superapp in the future, as opposed to X where it's pretty much impossible.

Though worldwide laws and regulations are quite a hard hurdle for any app to beat in the first place. We're currently seeing the example of "even one of the richest blokes in the world could pour all their money to make such a dominant app and it wouldnt work" after all.