How does Bounds affect skin Mesh Render ？

Question

As a beginner of game development, when I checked the Skinned Mesh Renderer in the Inspector panel, I found that I didn't understand the Bounds option very well, so I went to the official documentation, which explained the bounds as follows： enter image description here

However, this explanation still makes me feel ambiguous, because it doesn't seem to make me understand the specific role of bounds, why mesh should be included in the bounds volume, and if not, what effect will it have on skinng?

However, when I went to Google to search for relevant information, it seemed that there was no explanation for the mechanism of bounds at all, only the explanation at the application level. When I'm learning something, I'm more inclined to understand how it works to the best of my ability. So I hope some experts can help explain the function of bounds, thank you very much!