Other than the expensive price tag on a Gucci item, that blouse is over 2 decades old in style. I own several and they are that old, they belonged to my MIL who was a pastor’s wife. Very dressing looking with a long slim skirt or slacks. They usually satin feeling. And they were never called a ‘pussy bow’ when they first came on the market, that is just a Gucci marketing thing.
I read that Margret Thatcher is the one who made them popular.