Yes on all count.
1) Absolutely, it's what it's best at honestly. 2D mostly for me because I have only basic expertise in digital art.
2) Yes, in two ways: For generating 2D backgrounds and for placing other assets in 3D scene, especially when it comes to tedious stuff like decorating houses or creating forests and the like, which it does better than typical procedural generation techniques.
3) Yes, I use it in two ways: For motion capture and for general advices when I'm manually doing animations, either in 2D or 3D
4) Oh I'm a senior software engineer and I use AI for coding. Not using it is just bad in my opinion. Like using notepad over literally any IDE. It's a powerful tool. It can cut down on workload tremendously by generating structs, classes, and general code monkey stuff you'd hire an intern to write for you because you can't be fucked to waste precious time manually doing everything. I also use it for more complex stuff by having it generate code for stuff and then reading through the generated code to fix the issues I find. It's basically like having a free intern that never sleep. You code review the AI code and get what you want most of the time, and when you don't you just do it yourself anyways.
5) Yes. I use it for cooking recipes, general inquiries, training routine, etc.
