You guys can stop fighting. ADHD is an broad label for what is becoming increasingly obvious are separate conditions, and I think they are up to at least 2 different types and then a third with mixed symptoms of both.
What works for someone else may not work for you and vice versa, that's okay, it doesn't have to turn into you two being condescending assholes to each other or accusing the other of faking ADHD.
The question was how you personally deal with your ADHD and they answered with what they do personally to deal with their ADHD, stop shitting all over them and talking down to them for being on topic. If you wanna give constructive advice you can do without being a jerk about it.