It's completely the other way around. The DE model is supported by evidence in the form of a well-substantiated, unifying explanation for testable, verified and verifiable factors, thus proving that the Earth is flat.
Again, you are being nonsensical. You are asking to prove that the world is flat without any notion of what that even means.
To say the theory comes before hypothesis tells us you dont know jack about how the scientific method works.
Also to say like so many other FErs that the flat earth has been proven is a bold face lie.
Because if it was it would of been a bomb shell and big news on every news outlet and form of communication 24/7 with the whole world and scientific community scrambling to explore and figure it out further.
There would of been uprisings,riots,wars,economic collapse,etc.
Yet none of these things have happened.
To date as of this post the flat earth theory has 0% proof and to say it has been proven is false.
The only ones here being nonsensical are flat earthers while the majority live in reality.