I'm glad you two can get along in this capacity. I have ADHD and I'm very much like your wife and my last partner was like you, but my ability/tendency to multitask tended to be overwhelming for her even when it was just me doing it. Like, if I tried to talk to her while simultaneously listening to a podcast and doing something on my phone, she would be feel overwhelmed by association and ask me to stop the other things and just talk to her.
I don't think she had ADHD though so maybe it was different for her and more of a sensory thing. I just appreciate that you two are so different (in this aspect) and still able to respect and adapt to each other's differences.