There are numerous obvious problems with FET with regard to it not coming close to predicting the observations of the sun, day/night, moon, and stars that we actually see.
But here I'm just asking about the rather fanciful claim that what is past the south pole is not the other side of the planet but a transparent dome, or an infinite frozen plane
The "ice wall" is apparently out of fashion (though it seems to come up often enough).
Flights over the south pole while not common have occurred and those as well as land expeditions across Antartica all end up on the other side of the planet just as the global earth theory predicts.
None has been stopped by the dome, or ended up on a frozen waste land (or hit the ice wall).
There have been circumnavigations of Antartica as well including In 2019 by a robotic sail done (
https://www.noaa.gov/news/saildrone-is-first-to-circumnavigate-antarctica-in-search-for-carbon-dioxide ) which clearly documented its 13,670 mile trip. Less than 1/5th of the 75,000 miles going around the edge of the flat earth would entail.
To be honest the FE is so silly I find it very hard to accept that anyone takes it seriously.
Why do these clear results not soundly refute the FET for its supporters? The claim is that such support stems from observation and evidence not just belief, but here is evidence that throughly refutes the FE, yet its supporters remain.