I was raised around Mexicans, and none use flour here for flautas.taquito (little taco) = corn tortilla
flauta (flute) = flour tortilla
Ask any *real* Mexican and they will line your ass out.
As for your local restaurant (which is where I have to assume you're getting the bad info) you DO understand that they can be wrong.....right ?
Tex Mex doesn't count since it is a bastardization to both Texas and Mexico.
Pupusas are not Mexican, they are Guatemalan, Honduran, or El Salvadorean.
They do not use a tortilla, but are a hand formed masa of different recipe (like sopes, tamale, and hurrache are different foods made with different masa recipes).
Apparently you have trouble reading, I didn’t say it was a tortilla and I said they also cater to Hondurans, hence the pupusas. This lack of reading skills continues to be an on going issue for you.