So far, no movement.
My husband (Pakistan, IR-1) is still waiting since Nov 6, 2023, DS-5535 plus supplemental docs. Almost 10.5 months.
I have talked to another applicant regarding those who were born in the List of 26 Countries with a similar situation (technology background), and those F-1s have been waiting 1.5-2.5 years for AP. I am not hopeful that the 1 year mark for waiting is accurate.
On our WhatsApp group for Pakistan AP, another petitioner's parents (IR-5, DS-5535) got a medical request, so that's good news. They had interview on the same day as my husband. So they got medical request about 10 months after submitting DS-5535.