Hi, great question. BTW, I moved it from the "Blogs, Tutorials" category you selected since this topic isn't about either of those resources. Be sure to select a related topic next time.
As for your question, I sit at a low craft table with a normal desk chair, which doesn't require that much leaning over. I also decorate a lot of 3-D cookies, so to pipe or decorate their sides, I often elevate the product for better visibility, which also contributes to less leaning.