I haven’t gone on HRT, but I’ve experienced huge changes in taste as a result of microbiome changes in my gut. After antibiotics or a stomach-based illness everything tastes muted and metallic to me, like I’ve got half a mouthful of blood in addition to whatever I’m eating. Additionally, after I became vegan six years ago my taste in food totally changed. My working hypothesis is that once the relevant gut bacteria died off, the taste or smell of meat or butter became intolerable. I’m not sure whether hormones affect your microbiome, but if so that could explain it. That said, I don’t think any of these things have affected my ability to eat specifically spicy food, so YMMV.