While it is true that therapy is not a replacement for how stimulants reinforce executive function, therapy can help folks with ADHD understand their behavior patterns and better manage some of the challenges that go along with the disorder.
In my experience, therapy helped me get over my lifetime guilt around my lack of achievements, better understanding my triggers, and prioritizing self care. I couldn't have gotten through COVID lockdown with my wife and two kids in our tiny house without it.
But talk therapy can help some folks come to accept the differences that their ADHD means in terms of how to relate to other people or to better understand why how ADHD impacts their own behavior and self-perception.
I myself have found it’s much easier and happier to shape my life around my particular ADHD than trying to change my behavior (something that’s destined to fail and only compound the negative emotions associated with ADHD).
The only things I’ve foung that actually works, is a daily combo of Vyvanse and dexis
The therapist that worked for me practiced ACT, and was more close to coaching when it came to ADHD.
Therapists are living databases of solutions to certain kinds of problems that people have.
Problems caused by ADHD certainly belong to that category, and if your therapist is specializing in that area, they can save you a lot of time and effort by suggesting approaches that you'd otherwise have to figure out on your own.
Finding such a therapist is, unfortunately, a bit like winning a lottery that most people in the US wouldn't have the resources to play.