The other way around. When regarded as female I would avoid female cut clothing and anything remotely revealing. I did not want the attention or being reminded of the female figure. So wearing loose and casual clothing was something I gravitated to without thinking about it.
As a man I'm much more inclined to look smart and dress less like someone who hates themselves.
I wasn't slovenly though. I've been a clean freak for a long time. I don't like wearing shirts or t shirts etc. for more than one day, I can't operate with dirty hands at home. Cruddy nails are gross, I keep them short and clean. And I probably wash my hands 30-40 times a day. Mostly due to work but also some of it is habit from when I worked in a hospital.
About hair though - if I comb or style my hair too neatly it looks feminine. You have to leave it a bit messy if it's long-ish and you don't want to look silly as a dude. I used to feel if my hair was messy it drew negative attention on a woman, so mine was always neat. I didn't want to look like a meth addict or something. So I dressed neutrally but always had hair as neat as I could get it. Now it's kind of the other way around... dress neater but allowed my hair to do its own thing.
I have some OCD about cleanliness still, there's a psychological effect if I feel dirty or sweaty or sticky or whatever - puts me in a worse mood. In some situations it's okay, such as when doing something outdoors and getting covered in mud or water, but to go out normally or hang out with people and have some crud on my hands or face is just not happening.