Can you see a change in your facial contours after getting jaw Botox?

Lately, when I look at my face, it doesn't seem like I've gained much weight, but it bothers me because my jawline feels duller than before. Especially when I take photos, my jaw area seems to look a bit wide and heavy, so I looked into various options and found out about jaw Botox.

What I want is not for my face to become drastically slimmer, but for my jaw muscles to shrink slightly and my overall facial contours to be naturally refined. However, I am concerned because I have heard that the change in face shape can be more significant than expected.

For those of you who have had jaw Botox, did you notice a difference in your facial contours when you actually took photos? I am looking for personal experiences because I am also curious if it can make the face look too slim or if the cheeks appear sunken.