I am a freelance graphic designer, which at one point (like so many fields) was predominantly male (I'm older remember?). Now-a-days in the modern world, the field is pretty well split in the middle.
In the past I had worked as a restaurant manager and server which is also a pretty genderless job, though back-of-house (chefs, prep cooks, etc) is more male oriented. I was also a commercial product photographer through the 80s. At that point in time there were very few women in this particular field (in my experience), though other areas of photography were differentially either female or male dominant. I guess it came down largely to the analogy that Millie used for therapists, the more analytical fields were male dominant and the more empathic/emotional were female dominant. That split has also degraded a lot as well. Fortunately.
Back in the 70s I was also active in the martial arts and that was just slightly more male dominated (60:40 maybe 55:45).
Would I do anything different if I was born cis-female (or even cis-male)? I honestly can't answer that. I have never been cis-anything and have no idea how much gender/hormones/upbringing plays a part in developing interests, passions, creativity, etc. If I had to guess, I would think that being born cis-female I would likely have worked in some creative/artistic field. Whether that would have been photography, restaurants and graphic design, who knows? Not likely maybe.
Great questions though.