yup, the same happens to me
you could credit the T increase for that: more T = higher libido = you're gradually becoming pansexual (pansexual = you could fuck everything)
when I was over a month into cold-turkey no-fap I had the most fucked-up fantasies ever: I'm talking pictures of oversized clitorises and castration videos, not the silly gay BDSM stuff
my way to avoid that is switching the cold-turkey approach to gradually decreasing the frequency of fapping: 1 day no-fap -> 1 fap -> 2 days no-fap -> 1 fap -> 3 days no-fap -> 1 fap and so on, so on
another way to cheat libido is becoming low-energy (kinda counterproductive, but useful if used wisely): calorie restriction, limiting sugar intake, reducing caffeine intake, maybe using calming herbs, herbal sleep pills
you COULD also empty your prostate - you can do it without orgasming (I guess that's the goal) and it should reduce your horniness, but playing with your asshole isn't probably the best thing to do if you're having homosexual thoughts
if you're religious, go pray or read the scripture
no-fap-induced horniness can spark some weird fantasies, but eventually the baseline libido should move up, so you'll be fine aka you're probably not homosexual
but tbh I've experienced gay thoughts on long streaks and while traps and twinks are fair game, I've never had a fantasy involving a manly man