Of course the horizon curves, you idiot. The horizon wraps around you in a large circle 360 degrees. If the horizon was dead straight you'd have to be able to see further away from you at 45 degrees than you would looking straight ahead and there would be no horizon behind you ... it would be parallel to you. Does the earth fall away at the edges? Your garlic bread doesn't convince me that it does. You want ball like curvature, not dish like curvature.
You sure are hostile...
On the ground at sea level, the amount of curvature we would see is not noticeable due to the size of the earth. The horizon would be basically flat, no matter which direction you are looking. This is one of the primary arguments of the flat earth that the horizon is always at eye-level and the horizon is flat (exactly as we see it when viewed at sea level). This observation holds true on both the flat and globe earth, yet when rising to extreme heights, we expect a drop in the horizon and a visible curvature on the horizon on a globe earth, which should not be there on a flat earth.
We can accurately predict and simulate the amount of curvature we would expect on a globe earth at any given altitude, and we can actively observe that the predictions adhere to reality.
Meanwhile, the flat earth can predict nothing, it is impossible to simulate, math doesn't work with it, you need to invent new methods for perspective and ignore common sense in regards to observations, you can't make a proper map, or even a concept model which can explain the stars clockwise rotation in the south without making a whole new model only used in this single case.
I'll make it simpler.
Imagine the earth was a flat square ... what shape is the horizon?
Something like this? With a straight horizon?
Now imagine it is a flat disc. Still got a perfectly straight horizon?
Nope.
Only a lunatic would say "the horizon bends and therefore the earth must be a ball".
Here is me looking out over the edge of a dinner plate.
Its not a ball, is it? But it has a horizon, a curved one.
If you scale your imagery to the size of earth, you would be hundreds of kilometers above the earth. If however you were straight above the surface on the gigantic earth, you would see a flat line.
Besides, in both your examples, you are looking down towards the horizon, which also indicates that the horizon is not eye-level in your examples, also a clear violation of the FE 'the horizon is always at eye-level'.
The idea of this topic is to disprove one of the primary beliefs in the FE, that the horizon is always flat.
Since you already seem to believe that the horizon should curve due to geometry, this topic isn't meant to persuade you.