unlikely.
the standard image of a flat earth with a sun obviously doesn't work, and neither does the "spotlight" idea.
At the very least, a seed of doubt would have been planted.
I am astounded that so many people in this thread remain as naive about Flat Earth and flat-earthers as they are.
You're right, typical flat-earther "models" of how the Sun and Moon supposedly work in relation to Earth's surface and all of that, couldn't physically "work". Of course they can't. They're not supposed to. Flat Earth isn't about creating a working model. It never was. Indeed, the actual aim of Flat Earth is to posit a form of Earth that can't, and shouldn't, "work", but nevertheless does.
You guys look at things like the fact that flat-earthers readily concede that other planets like Mars are round, and just laugh at this like it represents a logical blind spot or selective cognition. It's not; it's intentional, and you're missing the insight it provides into what they're actually thinking.
Flat-earthers believe other planets are round and stars are real, but the Earth is different. They have so many different theories about the granular details because the actual shape of the Earth is in reality tangential to the point, just a fun distraction; the real crux of the theory is simply that the Earth is a special case that isn't subject to physical rules that apply to the rest of the universe. Complaining about how gravity "would have to work" on a disk-shaped Earth, or asking about what's on the other side of the disk, or how the Sun could ever visibly set over such a planet, completely misses the point.
It's not supposed to be explainable, because the underlying assertion is that
it only works because God makes it work. The Sun is only visible from part of the disk at a time and appears to set over the horizon because God makes it look that way. Gravity is uniform across the disk because God decides how gravity works. People can never find the edge of the disk because God chooses not to let them. Satellites and GPS work, but their designers intentionally lie about
how they work in order to give the false impression of a globe because they want to make people disbelieve in God by offering them instead a universe that operates as a set of knowable and predictable chain-reactions that doesn't require a God pushing buttons and making positive decisions.
Flat Earth is a religious argument for the existence of God, not a pseudoscience. You can't prove it wrong with "evidence". You can't prove
any conspiracy theory wrong to its believers with evidence, to be sure - but this is true for entirely different reasons when it comes to Flat Earth. The fact that their models of the Earth and sky "can't work" isn't a bug, it's the feature that proves to them that God has to exist.