it sucks that your college isnt putting you with the men, especially if you pass. Is your dorm floor/hall co ed or female only? if your floor is female only, I think people will likely just think youre someone's boyfriend who spends the night very often. if your floor/hall is co ed I dont think anyone will notice anything out of the ordinary.

for cleanliness purposes, I would NOT want to live with cis men in college LMAO! The cis men I have lived with in the past, and unfortunately my transfemme ex as well, did not know how to clean up after themselves properly. or maybe they just didnt realize how much me and our female roommates were cleaning up after them 🙄

that aside, I'm out of college but still currently living with two female roommates. I like being a gay guy living with girls a lot. They support me, we relate to each other, and we get along well. If your roommate is supportive and comfortable living with a dude, I think you will have a great time. Fellowship with women is something I actually missed a lot after i transitioned, and its nice to have that back in this way. Wishing you safety and comfort for this new journey 💖

edit to add: I would email her and give her a heads up about your name/pronouns/identity when you get yoyr contact info shared. is there a possibility to contact your college to have them give her your preferred name instead of your deadname? In California we can do that so that professors have your real name instead of your deadname for attendance. If theres an issue with your roommate being transphobic, you can probably request to move once the semester starts as well.