Not here. My office is “business casual” Monday through Thursday and “jeans casual” on Friday. Shirt and tie days only occur when we meet with clients.
We can wear just about anything we want in my office, just nothing with offensive language or competitors’ logos on it, and nothing too revealing (common sense judgements here). I come to work in jeans and either a polo shirt or a nice T-shirt. At my last job where I worked in retail they relaxed the dress code there. We used to have to wear dress shirts with long sleeves (though the sleeve-length was never enforced) a tie, and dark dress pants. When the code changed we could wear khaki pants with a navy blue polo shirt, which was more comfortable.
Suits - with panty hose if it’s a suit skirt - every day but the last Friday of the month and every Friday between Memorial Day and Labor Day (YAY), when we can wear jeans, polo-type shirts, but no T-shirts. You can get away with sneakers, most of the time.
Of course, our division that actually makes suits…they get no casual days (for those in the corporate office)
Very casual at all of my jobs.
I have a little coordination issue so I am consistently the best dressed person at work. Oh well, with the exception of Faculty, I also get paid the most, so I’m not about to start complaining. 
The agency I worked for had (I thought) a very loose casual dress code. Still, there was one employee who consistently went to far. They’d talk to her, she’d straighten up for a few days, then gradually slip back into her old habits. Her supervisor liked her, and she actually won “employee of the quarter” once. Then the layoffs came. She was let go.
Make of that what you will.
I dislike casual Friday. It should be casual every day. In my experience, casual Friday type companies mandate a style of “casual” clothing that’s pretty damn formal. Usually it’s a polo shirt and khaki’s or some such stuff, but highly unlikely that Levi’s and a hawaiian shirt with cut the mustard.
Lehman Brothers Hong Kong used to demand loafers, slacks and a collared shirt (no polo shirts). All that meant was I got to take my tie all the way off instead of wearing it loose. The boss used to show up in a blazer and loafers, and that was the extent of casual friday.
I used to get lectures about how it made people better traders if they were in a suit.