Look at the track and field athletes in the Olympic Games. They are muscular, short distance and heavy. This is the difference between adding a machine to fitness and losing weight.
In the same exercise mode, if you do heavy anaerobic exercise for a short time (within 45 minutes) quickly, you will increase your muscles. If you do aerobic exercise with low weight and slow speed for a long time (1 hour or more), you will lose weight.
You can choose the intensity and time of exercise according to your own needs.