Zhaire Smith has significantly altered the release point on his jump shot. It appears that he did so naturally, on his own, while recovering from some physical setbacks he suffered since last June.
The 16th overall pick in the 2018 NBA draft first suffered a Jones fracture injury in his foot following summer league. After that he needed an emergency thoracoscopy because of an allergy. Then because of complications from that experience Sixers, he lost significant weight:
Over the time he was dealing with the complications from his allergy and resulting surgery it sounds like he was determined to put up some shots, even with a tube in his stomach.