This 7 week course (free online and next running this October) from the University of Tasmania's Wicking Dementia Research and Eductation Centre does not once mention the benefits of hrt in preventing dementia.
Preventing Dementia (2023-10) | The Wicking Dementia Centre (utas.edu.au)
The Understanding Dementia course is available to do online now.
Understanding Dementia (2023-07) | The Wicking Dementia Centre (utas.edu.au)
Likewise, in her book based on her 30-year observational study of women's health, Secrets of Women's Healthy Ageing, Professor Cassandra Szoeke, from the University of Melbourne, there is no recommendation of hrt use for healthy ageing; in a short passage, she says merely the jury is still out regarding it in terms of addressing any modifable risk factors for women as they grow older.
Secrets of Women's Healthy Ageing: Living Better, Living Longer : Szoeke, Cassandra: Amazon.com.au: Books