Yeah I have no idea wtf this meme is talking about. A lot of people seem to have this weird idea that ADHD gives you some immense ability to focus? When it’s literally the opposite. They hear about hyper focus and think that means you have some weird superpower. In reality it’s an inordinate amount of attention given to whatever is the most interesting thing to you, at the expense of focus paid to things you actually need to do. It seems pretty unlikely that the person described in the OP is extremely interested in a shopping task.