I don't know any proper data, but judging from my own experience I'd bet that many ADHD people disable things like notifications and often use devices more consciously than others.

My phone works almost in a pull-only manner - not many things are allowed to cause push notifications there. I can't imagine being able to get through my life with so many things constantly begging for my attention. I have to use ad-blockers and disable JS by default to browse the Web and keep some sanity. Neurotypicals don't seem to mind.