Massage Tool Experience/Reviews?

I crashed a motorcycle a few years ago. Internal lacerations, deep bruising and broken bones have healed, but I’m left with a partial elbow replacement.

However soft tissue/muscle was reattached seems to have shortened tissue length in my forearm for a lack of a better description. After upper body workouts, my affected arm is extremely tight with notable reduction in ROM at my wrist.

Through PT I technically regained 97% mobility but twisting my hand outward, palm up (suprination?) can be a problem.

Long story short, I am curious if anyone has used the linked tool or one similar with success for elbow issues? Massage guns, fingers et cetera all work marginally well, but not great.