I would definitely bring up that you are interested in other progestogen options if you are.
Micronised progesterone has been pushed as the holy grail in recent years and synthetic progestins have been really demonised, so either she believes everyone should be on micronised, or she thinks this is all her patients will accept. She has probably had a ton of women saying they will only have body identical, because they have watched Louise Newson on YouTube (who I am a big fan of, but don't align with on all issues)
This is one of them - micronised progesterone is slightly better regarding clot, breast and cardiovascular risks, however the absolute difference is minuscule, and it doesn't control bleeding or prevent endometrial thickening in a significant proportion of women, and at high doses tolerability becomes a problem.
When safety vs harm is being considered, nobody is factoring in the suffering and distress of many women undergoing painful and invasive investigations for bleeding, often repeatedly, nor all those who give up HRT altogether due to bleeding, having only ever tried one progesterone option.
Synthetics on the other hand have been engineered to achieve endometrial control at very low doses. They are associated with much lower bleeding rates and lower risk of endometrial hyperplasia and cancer than women on no HRT. The WHI also reported a significant reduction in bowel cancer on the combination with provera. That never gets mentioned, because who cares if women get any other type of cancer as long as it doesn't impact the male gaze like treatment for breast cancer potentially can.
So if you are willing to look at the synthetic options, and have said that mirena isn't for you, then there are several oral progestins that you can take daily.
The BMS has a list of these on their website if you wanted to take something to show your provider.
My first option would be 150mg desogestrel daily ie 2*cerazette pills. This has excellent safety data, potent endometrial control and is easily obtained. Many women have also used it previously in birth control.
Secondly there is Slynd, a newcomer which is 4mg drospirenone and can be taken daily as the progestin in HRT. It is increasingly popular but no data on how good it is on bleed control Vs others.
Norethisterone is another - requires taking 3 * Noriday pills a day unless in an oral combination product. Some find mood and bloating and issue on this.
Then you have Provera (medroxyprogesterone acetate) which was used in the WHI but is also available as a standalone progestin. This is the least metabolically favourable but still a really good treatment if no other option suits, and at a high enough dose could stop an elephant bleeding. Suggested dose on a moderate estrogen dose eg 4 pumps would be 5mg. This can be increased to 10mg daily if needed.
I would absolutely take provera if it were the only option that suited me, rather than no estrogen.