How many jaw Botox sessions are needed for my face to look different?

I'm considering getting jaw Botox, but I'm worried that my face shape might change a lot.

The jaw is a part of the face that significantly affects the overall impression. So, while I am concerned about the procedure itself, I am also worried that my natural facial features might change after getting it.

When I look at people around me who have received it, it doesn't seem like a drastic change, but if you look closely, I do get the feeling that their face shape has changed somewhat compared to before. I am a little hesitant because I am worried that I might experience a similar change.

I've heard that nowadays you can check the expected results on a computer before the procedure, but I'm curious to know how helpful that actually is.

For those of you who have received jaw Botox, did you notice a significant difference before and after the procedure?

I'm curious how many sessions are usually required, and how many sessions are needed to feel a change.

I would like to hear your experiences on whether it just naturally refines your face shape, or if it could change your overall impression.