Between contouring injections and jaw Botox, which procedure provides higher satisfaction for facial lines?

I am looking into contouring injections and jaw Botox because I want to refine my facial lines.

Since both are common procedures, I am having trouble deciding which one to get.

When I looked at the reviews , It is said that contouring injections help to get rid of facial fat. , I heard that jaw Botox is effective when the jaw muscles are well-developed.
For those who have received both, which procedure did you feel a more definite change from and recommend? ?

Cost-effectiveness or retention period , It would be very helpful if you could share information such as downtime.