I'm a straight girl creature IRL, as a preamble.
I play male and female characters I feel like pretty evenly. I first started playing men largely for setting reasons and due to my feeling that it's good if characters support the 'norm' IC sometimes (because everyone wants to be rebel-rebel it gets tired for me). I like historical games and fantasy settings which are (frustratingly) often using European feudal gender norm tropes, so there were certain types of characters like knights and trench soldiers were just going to be men if I wasn't doing something designed to push against the setting in a certain way. I didn't always want to play that, so, boys. After awhile I started doing it just because I enjoyed it, felt like it gave me more colors to draw from as a player, and because certain concepts seem more interesting to me if they're male or female. I think I do it OK. I've had players I know are guys IRL tell me they didn't know I was a woman IRL when they initially met me on a dude bit because I wasn't fucking it up too bad heh.
I've never played a gay guy for any length of time, though it's not really intentional. I've conceived a couple characters as gay dudes but didn't care for the games I apped them on for various reasons, so they were two of the many alts I've abandoned on the woodpile. I mostly end up playing straight men (an a bisexual dude who is buttoned-up and gets no tail at all for various reasons) and more variable straight/bi/lesbian women. I'm super self-conscious about whether or not I suck at relationship RP in general but idk I enjoy it.
I get not feeling like a woman who knows woman things IRL though that's become less of a thing as I get older. Like Roxane Gay I'm a bad feminist and bad at a lot of girl things and that's fine.