I don’t find any mention of this on the study. But even if there was you realize how insignificant that signal is compared to everything else right? From personal anecdotes to any married bald man it’s trivial to show it’s irrelevant. Like others have said work on what you can improve, like getting fit, and obviously confidence and empathy first by getting female friends and in the process realizing they are not cavewomen. If you are seriously looking at studies for what is attractive then that’s 100% the problem, not your hair.