Has anyone seen the effect of a square jawline or reduced masseter muscles after getting jaw Botox?

Has anyone seen the effect of a square jawline or reduced masseter muscles after getting jaw Botox?

My jaw muscles keep looking prominent, and I'm self-conscious about my lower face line when I take off my mask, so I'm considering jaw Botox.

I heard that it is the safest choice for creating a slim jawline because it reduces the size of the masticatory muscles that feel hard when chewing food.

For those who have actually received it, do you notice a definite reduction in the stiffness in your jaw when chewing tough food or swallowing saliva?

I am curious if you were satisfied enough to notice that the fit around the lower face became lighter and the face shape was neatly refined when taking photos or wearing clothes.

Also, what did you do if you felt a tingling sensation or mild stiffness in your jaw muscles on the day of the procedure or for a few days?