HRT and stroke risk?

This article about new guidelines on stroke says the following. Does anyone know more about HRT and stroke?:

“Women should be prescribed the lowest doses of estradiol possible,” Dr. Bushnell said, referring to a type of estrogen. “These can still be very effective for contraception, but lower the risk of stroke.”

Women at higher risk for stroke — including those over the age of 35, smokers, those with high blood pressure or migraines with auras — should avoid estrogen and use non-hormonal or progestin-only contraception.

Postmenopausal hormone therapy should “be reserved for women with moderate to severe hot flashes, night sweats or both” who are under 60, she said. “If somebody doesn’t have those, they really are not a candidate for hormone therapy.”

New Stroke Recommendations Call Out Risks Unique to Women https://www.nytimes.com/2024/10/22/health/stroke-women-pregnancy.html?unlocked_article_code=1.UE4.zUCx.VxvjJc_LLsxI