These results suggests that there is some liver inflammation because your ALTs are higher than normal. If this remains high, antivirals are usually recommended to prevent further liver injury.
Your low fibroscan score is good news and is consistent with an uninjured liver.
High HBsAg isn’t in itself harmful, it just give an indication that the virus is present in the system. It sometimes gets tested when considering if the body is close to clearing the virus (it is low when this happens).
Lower viral loads can come because your immune system is clearing virus-infected cells and stably low levels is generally linked to better health outcomes.