Have you actually researched any FE models? Like... any?
That's a very good question, and one that exposed the nonsense of "Flat Earth" very quickly.
Because there isn't any Flat Earth model.
There are some vague references. The Earth is "not a sphere"... but what is really is, most Flat Earthers will never tell you. The sun and moon are "local". How far away they are, how big they are... even WHAT they are... Flat Earthers cannot agree.
Is there a map of the Flat Earth? Flat Earthers often like to use the North Pole centered, azimuthal equidistant projection as "their" map. Even the UN uses this map - they know, they mock you, Flat Earthers like to proclaim.
But as soon as you point out the difficulties this map would have in reality, they backpedal. Oh, no, it's just an idea. It's not how the earth REALLY looks.
How it really looks? They have no idea.
How do thinks work on a Flat Map? Seasons, horizons, weather, tides, optics, gravity, planes, gyroscopes... they are quick to tell you how all these things would definitly NOT work on a globe... and by their explanations, they reveal that they don't have the slightest understanding of these things. But asked how they work? Hey, sometimes you might even get a "model"... which crashes as soon as you compare it to the most obvious of observations.
There is no Flat Earth model. There are no Flat Earth models. There are only a bunch of more or less stupid assertions.
Now of course you might claim that we have only looked at the bad models, or the bad proponents of Flat Earth. If we would only search for the "real" models, the "real" Flat Earthers, doing the "real" science to prove their ideas.
Yes, that would be nice.
Where do we find them? Any idea?