I’m not sure. He’s very weird but he might be okay since you’re considering HRT.
Yes dutasteride gave me worse hair. You can read about reports on this, it happens for some people. Interestingly I didn’t have that bad of sides, which makes sense since hair was worse and acne too. That’s upregulation for you.
You have solid hair. If you are concerned about maintaining, you really don’t need that extreme of a regimen. Unless you want regrowth. Personally I would focus on a healthy regimen that is sustainable long term. If you go on HRT, imagine how much the drug will affect you since you are already sensitive to dutasteride. I’d make slight changes to your regimen to maintain, and go to a top transplant doctor.