Man, you really need to do more homework on this.
First off, all high-pressurized aircraft use concave windows, which naturally distort the horizon and can create the illusion of curvature. That’s basic optics — not evidence of a globe.
Secondly, what you're not taking into account is that even in the flat earth model, the dome is curved. So yes, if you were looking down from above the dome, you would likely see some kind of curve — but that doesn’t prove the Earth beneath is a spinning ball. You’re mixing concepts without understanding the model you're trying to debunk.
You need to dig deeper and stop relying on the same recycled claims. Try harder.