But men have more body hair and thick beards, not because of excessive androgen secretion, but because skin hair follicles are sensitive to androgen, which is hereditary. In other words, people with low androgen will also have more body hair or a thick beard, and people with high androgen may also have less body hair and less beard.
Therefore, male body hair and beard have nothing to do with androgen levels in the body. Unless it is abnormally low, body hair may not be fully expressed according to the genetic code.
In addition, men don't have too much androgen unless they take steroids or brain tumors. Your so-called excesses are actually within the normal range. Fitness enthusiasts taking large doses of androgen will not cause the increase of body hair or beard, which means that androgen will not promote the increase of body hair and beard.
Hair loss is also the sensitivity of scalp hair follicles to DHT (the metabolite of androgen), and DHT is also hereditary and has nothing to do with body hair and beard. Some people have less hair loss, and some people have strong hair loss, and the probability is similar.