Same with my endo, he never prescribes the stuff and scoffed at me when I asked him about it during my second appointment 10 months ago.
I hit a full B tanner stage III at around 7-8 months of HRT , very little fat despite gaining some weight and nearly all breast tissue. Now at Tanner stage IV and still at a full B even after losing about 15lbs. For sure, all breast tissue.
Spiro is not necessary, and I'm not surprised he was lecturing about it. Estrogen and progestins seem to be the most important from my own experience. I've never put a single tablet of estrogen, progesterone, or spiro into my mouth and I never will (it's all been pellets with a few booster injections). I hope nobody ever puts a pill in their mouth, but I know it takes time.
Come on modern medicine, wise up for us! This isn't the stone ages. You don't treat gender dysphoria with prostate medicine and horse hormones.
Sorry if my rant is a little brash. It frustrates me to know that people aren't getting the care they deserve.