I had a hysterectomy when I was 24, both ovaries removed and was on HRT for 17 years. Because there is breast cancer on both sides of my family I decided to go off. I am 59 nad have no regrets about going off.
I have been on prolia since 2014 and no side effects - sore back for a few days after but otherwise I feel really good, most of the time.
My bone scan when I started prolia was -3.6 and I am now -3.1

I started HRT a couple of years before being diagnosed with osteoporosis and I think that and 2000 UI of Vit D has helped me a lot. It stopped bone loss dramatically. But now my asthma is worse and I have to take a steroid so that is a major concern. Seeing my osteo specialist in 2 days and will ask if I can move to the injection osteo meds once every 6 months.
My mom had osteoporosis so bad that rolling over in bed she would crack or break vertebra but was put on a high dose of HRT and an annual osteo injection and she really improved. So I am a big supporter of HRT for osteoporosis.

I take Prolia, but my Gynecologist really felt I'd be safe with taking an HRT called Duavee. She said that the fact that I have hip scores of -3.6 and -3.7 makes me a very special case. She said I could even take a half pill per day if I was worried, and it would still be worth the help. I have not had cancer to this date so I am going to take it.

To the women you said they took/take HRT for osteoporosis did you also take progesterone to balance the estrogen?