Hard to say what happened. Right main gear looks deployed, left main appears collasped, front gear either not deployed or collapsed. If an in flight cargo fire occurred as reported, did the aircraft suffer structural damage before landing that caused the fuselage break, or did a hard landing break the fuselage? Did an in flight fire cause landing gear collapse due to damage prior to landing, or did the gear collapse during a post landing fire, or did a hard landing collapse the gear? Did an in flight cargo fire create control difficulties because of equipment or systems damage, causing a hard landing?
Lots of questions here.