TYB - Keeping it tight!
As a military navigator, your flat earth shit is hilarious….the need for all sorts of different charts is due to the fact that representing a sphere on a flat plain induces some type of error. In your example, you'll see the lines of longitude increasing in distance away from each other as they move away from the North pole; on a sphere you would expect them to move closer together as they move away from the equator towards the South pole. As someone who has flown in the Southern Hemisphere, I can assure you this is the case.
Easiest place to start when looking at Flat Earth is Rhumb Line vs Great Circle…then when you understand the concept ask yourself if the military or commercial flights will waste more gas and money to fly the longer route (answer is no).
Look at the lines of longitude on your chart for the Southern Hemisphere. Whoever is selling you this shit, thinks you are too dumb to recognize the errors and apparently you are. Flat Earth is a Psyop (by who, is debatable) - Don't take the bate, it makes you look dumb off the bat…
Yep, just trying to help. Shills can get fucked. Anon patriots deserve to be steered off blatant mis-direction.