According to conspiracy theory, Is it possible that the bitcoin was created by governments to gain financial strength in the modern world?
And they did it by banning it all over the Asian countries and some European countries ? I'm sure there is no such conspiracy theory. In fact I'm not sure how this topic even come up here middle of no where when bitcoin has passed out its glorious 10 years.

May be you took a wrong turn and stuck into entangled theory of government.
There is paper published by Satoshi Nakomoto. May be I don't need to explain anything more about it.