Things fly because of thrust, not wings. Rockets, missiles, don't have wings and yet they still fly even longer distances. Shut the engines of a 747 and it will fall like a rock, no matter how perfect the airfoils.
Bernoulli and Coanda are important but without thrust/velocity there is no lift
The key difference is that a rock (like any ballistic projectile) accelerates until terminal velocity. In contrast, a 747 (like any airplane) descends with a constant vertical velocity when they lose power.
Bernoulli and Coanda are important but without thrust/velocity there is no lift