Some of the women in shul finish shemoneh esrei, then, instead of standing in place, or even sitting in their place, go to the back of the ezras nashim. They don’t go together as a group, they each go separately. Some read Tehillim, others read something about the parsha. It’s not a lot of women, just a few.
Some return to their seats at the beginning of charez hashatz, others at the beginning of kedusha.
Why do they do this?