History
Falcon (Sam Wilson) followed the same fate as his Earth-199999 counterpart.
When Janet Van Dyne was infected by a virus from the Quantum Realm, she infected her husband Hank Pym. He tried to take her out of the Quantum Realm which resulted in the spread of the virus around the world.
Among the many infected was the Falcon. It intercepted the survivors of the zombie infestation who were trying to escape to Camp Lehigh, attacked Bucky and Okoye who were being guarded, and was cut in half by Okoye.