So, let me get this straight, you are practically assuming - based on your total war modding experience I guess - that each and every dialogue in the game is hand crafted by teams of people just sitting there putting camera angles and re-creating animations again and again for each and every NPC dialogue you have?
That's a stretch man... like a huge one - unless you give me something more solid - like someone from CDPR actually confirming this or something like that, I would like you to try and not spread misinformation just for the fun of it.
And by the way, I don't know because I don't like acting like I actually know stuff I don't, yet they might be using cloth simulation to simulate the "Geralts Bear Armour bottom". Also, when you use software like ZBrush, then cloth and organics are fairly easily to create, for me it's the material & shader setup that I'm still trying to get the hang of.