"dude" "man" "guy" etc arent gender neutral, its surprising to me that this is still something regularly asked in places (this isnt to say it is bad that you asked, more just an observation). just because something is the norm doesnt mean that it is correct or good. you arent going to walk up to some guy (and when i say this, you most likely think "man") and say "hey gal whats up" so why is it then okay to walk up to a gal and be like "hey dude". this "male as default" way of thinking is rooted in misogyny, and women are defined in the ways theyre "not men", they are "other". gender neutral = masculine because society views men and masculinity as the superior gender and gender expression. by using these terms as "gender neutral" terms you are reenforcing this way of thinking