Proper exercise combined with diet control is the most perfect fat-reducing scheme. However, fat is oxidized and burned, so you can't lose fat without aerobic exercise, so even if you practice with equipment, you should add aerobic cooperation to the exercise. Muscle enhancement is the stimulation of muscles, and a muscle stimulation that is not in place is ineffective. Usually people who gain muscles exercise one or two parts every day, and each part exercises with different movements to achieve the perfect stimulation effect on muscles. Now that you mention it, you feel that the gym is fooling people. You seem to know best how to avoid being cheated.