There are many types of air combat... It can only be said that the F5 is somewhat better than the F35 in terms of maneuverability. However, in today's air combat, especially between stealth and non-stealth aircraft, close-range dogfighting has almost become impossible. It's not to say that the F5 has no chance of defeating the F35; if there is a powerful early warning aircraft, a strong electronic warfare plane, and the F5 is equipped with some powerful missiles and all three are networked, the F5 can of course take down an aircraft like the F35.