No, the facial muscles do not increase in volume from active use.
I play the trumpet, it requires a lot of facial muscle work. The technique of the game involves efforts mainly of the circular muscle of the mouth, but you yourself understand that everything that is nearby is also attached and involved (muscle lifting the corner of the mouth, muscle lowering the corner of the mouth, muscle lifting the upper lip, nasal muscle).
We discussed this with my teacher. The muscles of the face are not pumped. The teacher has been playing the trumpet for 30 years.
A professional trumpet player is not an aunt with facial gymnastics, he first practices for many hours in a row, and then plays the same amount in one day. At the same time, the face is not deformed - there are no burgs. On the contrary, the face is smoother because the muscles are toned.
It must be understood that muscles in the body are composed of two types of fibers - conventionally "slow" and "fast". Slow ones predominate in the muscles, which are aimed at constant dynamic work and stabilize the body (if simplified). So your face works constantly, from morning to evening, so most likely the facial muscles are with a predominance of type I fibers. And such muscles, smartly speaking, do not have the ability to hypertrophy. I mean, they don't grow.
I'll go play, or something. Have a nice day :)
Not so that right up to huge ones, like Arnie's frame, but up to expressive bumps - quite. I have an aunt at work who, in her free time, teaches facial exercises to other aunts, and she really has muscle bumps on her forehead, cheekbones and near her eyes.