you assume kinda correct and kinda wrong and kinda both and kinda neither, their actual argument for it is generally something along the lines of "the big government makes the plane fly around in circles for a while before arriving at the airport and all of the windows are actually screen so they can make you think you are flying straightish."
often flat earthers will argue using these maps to messure distances with which they will "estimate" some real world object around them to disprove the round earth.
for example there is a flat earth youtuber who made multiple videos trying to disprove things including but not limited to
"planes are 2/3rds the size they say they are"
"planes go half the speed they say they do"
"the earth is half the size they tell us it is because planes"
often flat earthers will argue using these maps to messure distances with which they will "estimate" some real world object around them to disprove the round earth.
for example there is a flat earth youtuber who made multiple videos trying to disprove things including but not limited to
"planes are 2/3rds the size they say they are"
"planes go half the speed they say they do"
"the earth is half the size they tell us it is because planes"