Yes, the sun seems to follow the equator, which
only happens at the equinoxes. It should move North and South throughout the year, to give the summer and winter seasons.
The Moon is even worse - not only is it
not always opposite the sun, its actual orbit is inclined at about 5 degrees to the Ecliptic (although I guess that's a word the Flat Earthers don't understand!
), so the moon covers an even bigger area of the sky than the sun!
The FE simplistic model doesn't explain solar eclipses either.
I humbly put forward these facts, and conclude that a FE is bollocks!