I am a fitness instructor. I can lose weight by doing aerobic exercise properly. Whether it will rebound varies from person to person. If you stop, you will not pay attention to the adjustment of your diet. Another point is to see if you exercise too much every day. If you want to lose weight in a short time, try a lot of exercise every day and sweat too much, then if you suddenly stop aerobic exercise at this time, it is very likely that your weight will rebound. If you want to avoid this situation, you should pay attention to the principle of gradual progress, don't stop exercising suddenly, change from high-intensity and high-load exercise to low-intensity and low-load exercise, slowly adjust the number of exercises from changeable to less, control your diet, and pay attention to the laws and rhythms of life. If you can do this, you should be able to restrain the rebound after exercise.
Suggestion: If you are a long-term sports person, you'd better not stop exercising, which will affect your heart rate and your health. If you don't want to lose weight quickly, you can try low-load exercise such as yoga, which can lose weight and shape, but it will take a long time to have an effect, and the rebound will not be obvious after stopping.