Of course cloth sims of varying fidelity are everywhere. Even games have had cloth sims for decades at this point.
But it is also something that remains a research problem how to do efficiently and with good results; pretty much every year in siggraph you see couple of new papers around cloth sims. For example this year we got this https://youtu.be/d9TZhtXeMio
The cloth sim in Blender remains one of the most frustratingly un-updated features. I would dearly love to see it get an algorithmic refresh.
As an artist, I needed to get it right. Wasn't as easy as I thought it would be. I had to think in 3D, to make 2D.
https://littlegreenviper.com/art/Tarsus.png
https://littlegreenviper.com/art/Gym.png